diff --git a/CommonCore b/CommonCore
index 47bd9af0..9df92595 160000
--- a/CommonCore
+++ b/CommonCore
@@ -1 +1 @@
-Subproject commit 47bd9af03eb987f94777f3b13f6ae6c30f153393
+Subproject commit 9df92595b2f344585bd3e1639cedc761680b7761
diff --git a/src/de/steamwar/bungeecore/BungeeCore.java b/src/de/steamwar/bungeecore/BungeeCore.java
index 5660af13..e319ed69 100644
--- a/src/de/steamwar/bungeecore/BungeeCore.java
+++ b/src/de/steamwar/bungeecore/BungeeCore.java
@@ -61,11 +61,7 @@ public class BungeeCore extends Plugin {
     public static boolean MAIN_SERVER;
 
     public static String CHAT_PREFIX;
-    public static String WORLD_FOLDER;
-    public static String BAUWELT_PROTOTYP;
     public static String LOBBY_SERVER;
-    public static String USERWORLDS15;
-    public static String BAUWELT15;
     public static boolean EVENT_MODE;
 
     private static BungeeCore instance;
@@ -73,6 +69,7 @@ public class BungeeCore extends Plugin {
     public static final Map<String, String> serverPermissions = new HashMap<>();
     public static final Map<String, String> commands = new HashMap<>();
 
+    public static Node local;
     private ErrorLogger errorLogger;
     private TablistManager tablistManager;
 
@@ -114,9 +111,8 @@ public class BungeeCore extends Plugin {
         new Fabric();
         new SubserverProtocolFixer();
 
-        new Node.LocalNode();
+        local = new Node.LocalNode();
         //new Node.RemoteNode("lx");
-        //new Node.RemoteNode("az");
 
         commands.put("/tp", null);
         commands.put("/bc", null);
@@ -154,6 +150,7 @@ public class BungeeCore extends Plugin {
         new RankCommand();
         new LocalCommand();
         new SetLocaleCommand();
+        new BuilderCloudCommand();
 
         // Punishment Commands:
         new PunishmentCommand("ban", Punishment.PunishmentType.Ban);
@@ -168,7 +165,7 @@ public class BungeeCore extends Plugin {
 
         if(!EVENT_MODE){
             new BauCommand();
-            new WebregisterCommand();
+            new WebpasswordCommand();
             new FightCommand();
             new ChallengeCommand();
             new HistoricCommand();
@@ -299,11 +296,7 @@ public class BungeeCore extends Plugin {
         }
 
         CHAT_PREFIX = config.getString("prefix");
-        WORLD_FOLDER = config.getString("worldfolder");
-        BAUWELT_PROTOTYP = config.getString("bauweltprototyp");
         LOBBY_SERVER = config.getString("lobbyserver");
-        USERWORLDS15 = config.getString("userworlds15");
-        BAUWELT15 = config.getString("bauwelt15");
         EVENT_MODE = config.getBoolean("eventmode");
         Broadcaster.setBroadCastMsgs(config.getStringList("broadcasts").toArray(new String[1]));
         PollSystem.init(config.getString("poll.question"), config.getStringList("poll.answers"));
diff --git a/src/de/steamwar/bungeecore/ErrorLogger.java b/src/de/steamwar/bungeecore/ErrorLogger.java
index c60d7aa9..2ac83aee 100644
--- a/src/de/steamwar/bungeecore/ErrorLogger.java
+++ b/src/de/steamwar/bungeecore/ErrorLogger.java
@@ -33,7 +33,6 @@ import java.util.logging.LogRecord;
 import java.util.logging.Logger;
 
 public class ErrorLogger extends Handler {
-    private int ddosRate = 0;
 
     ErrorLogger(){
         Logger.getLogger("").addHandler(this);
@@ -57,12 +56,7 @@ public class ErrorLogger extends Handler {
         if(logRecord.getThrown() != null)
             logRecord.getThrown().printStackTrace(new PrintStream(stacktraceOutput));
         String stacktrace = stacktraceOutput.toString();
-        if(stacktrace.contains("Cannot request protocol")) {
-            if(++ddosRate % 1000 == 0) {
-                SWException.log("Bungee", "DDOS", ddosRate + "");
-            }
-            return;
-        } else if (stacktrace.contains("ErrorLogger")) {
+        if (stacktrace.contains("ErrorLogger")) {
             return;
         }
 
@@ -86,10 +80,12 @@ public class ErrorLogger extends Handler {
         List<String> contains = new ArrayList<>();
         contains.add("Error authenticating ");
         contains.add("read timed out");
+        contains.add("could not decode packet");
         contains.add("Connection reset by peer");
         contains.add("No client connected for pending server");
         contains.add("Error occurred processing connection for");
         contains.add("Server is online mode!");
+        contains.add(" took ");
         ignoreContains = Collections.unmodifiableList(contains);
     }
 }
diff --git a/src/de/steamwar/bungeecore/Node.java b/src/de/steamwar/bungeecore/Node.java
index f07293aa..6c221200 100644
--- a/src/de/steamwar/bungeecore/Node.java
+++ b/src/de/steamwar/bungeecore/Node.java
@@ -19,6 +19,7 @@
 
 package de.steamwar.bungeecore;
 
+import net.md_5.bungee.BungeeCord;
 import net.md_5.bungee.api.ProxyServer;
 
 import java.io.*;
@@ -30,7 +31,6 @@ import java.util.logging.Level;
 public abstract class Node {
 
     private static final List<String> OPENJ9_ARGS = Arrays.asList("-Xgc:excessiveGCratio=80", "-Xsyslog:none", "-Xtrace:none", "-Xdisableexplicitgc", "-XX:+AlwaysPreTouch", "-XX:+CompactStrings", "-XX:-HeapDumpOnOutOfMemory", "-XX:+ExitOnOutOfMemoryError", "-Dlog4j.configurationFile=log4j2.xml");
-    private static final double MIN_FREE_MEM = 4.0 * 1024 * 1024; // 4 GiB
     private static final Set<String> JAVA_8 = new HashSet<>();
     static {
         JAVA_8.add("paper-1.8.8.jar");
@@ -40,43 +40,57 @@ public abstract class Node {
         JAVA_8.add("spigot-1.10.2.jar");
     }
 
+    private static final long MIN_FREE_MEM = 4 * 1024 * 1024L; // 4 GiB
+    private static final double MAX_LOAD = 0.8;
+
     private static final List<Node> nodes = new ArrayList<>();
-    public static Node local = null;
 
     public static Node getNode() {
-        Node node = local;
-        double minLoad = local.getLoad();
-        if(minLoad < 0.5)
-            return local;
-
-        synchronized (nodes) {
-            Iterator<Node> it = nodes.iterator();
-            while(it.hasNext()) {
-                Node n = it.next();
-                double load = n.getLoad();
-                if (load < minLoad) {
-                    minLoad = load;
-                    node = n;
-                } else if (load == Double.POSITIVE_INFINITY) {
-                    BungeeCore.get().getLogger().log(Level.SEVERE, "Removing " + n.getName() + " due to infinite load!");
-                    it.remove();
-                }
-            }
+        for(Node node : nodes) {
+            if(node.belowLoadLimit)
+                return node;
         }
-        return node;
+        return null;
     }
 
     public static void forEach(Consumer<Node> consumer) {
-        consumer.accept(local);
-        synchronized (nodes) {
-            nodes.forEach(consumer);
-        }
+        nodes.forEach(consumer);
     }
 
     public abstract ProcessBuilder startServer(String serverJar, File directory, String worldDir, String levelName, int port, String xmx, String... dParams);
-    public abstract void execute(String... command);
-    public abstract String getName();
-    public abstract double getLoad();
+
+    protected abstract ProcessBuilder prepareExecution(String... command);
+    protected abstract void calcLoadLimit();
+
+    protected final String hostname;
+    protected volatile boolean belowLoadLimit = true;
+
+    private long previousCpuLoaded = 0;
+    private long previousCpuTotal = 0;
+
+    protected Node(String hostname) {
+        this.hostname = hostname;
+        nodes.add(this);
+        BungeeCord.getInstance().getScheduler().schedule(BungeeCore.get(), this::calcLoadLimit, 1, 2, TimeUnit.SECONDS);
+    }
+
+    public void execute(String... command) {
+        try {
+            prepareExecution(command).start().waitFor();
+        } catch (IOException e) {
+            throw new SecurityException("Could not execute command", e);
+        } catch (InterruptedException e) {
+            ProxyServer.getInstance().getLogger().log(Level.SEVERE, "Interrupted during execution", e);
+            Thread.currentThread().interrupt();
+        }
+    }
+
+    public boolean belowLoadLimit() {
+        return belowLoadLimit;
+    }
+    public String getName() {
+        return hostname;
+    }
 
     protected void constructServerstart(File directory, List<String> cmd, String serverJar, String worldDir, String levelName, int port, String xmx, String... dParams) {
         if (JAVA_8.contains(serverJar))
@@ -106,26 +120,31 @@ public abstract class Node {
         cmd.add("nogui");
     }
 
-    protected void execute(ProcessBuilder builder) {
-        try {
-            builder.start().waitFor();
-        } catch (IOException e) {
-            throw new SecurityException("Could not execute command", e);
-        } catch (InterruptedException e) {
-            ProxyServer.getInstance().getLogger().log(Level.SEVERE, "Interrupted during execution", e);
-            Thread.currentThread().interrupt();
+    protected void calcLoadLimit(BufferedReader stat, BufferedReader meminfo) throws IOException {
+        String[] cpuline = stat.readLine().split(" "); // 0-1: prefix, 2: user, 3: nice, 4: system, 5: idle, 6: iowait, 7: irq, 8: softirq, 9: steal, 10: guest, 11: guest_nice
+        long cpuLoaded = Long.parseLong(cpuline[2]) + Long.parseLong(cpuline[4]) + Long.parseLong(cpuline[6]) + Long.parseLong(cpuline[7]) + Long.parseLong(cpuline[8]) + Long.parseLong(cpuline[9]) + Long.parseLong(cpuline[10]) + Long.parseLong(cpuline[11]);
+        long cpuTotal = cpuLoaded + Long.parseLong(cpuline[3]) + Long.parseLong(cpuline[5]);
+
+        cpuLoaded -= previousCpuLoaded;
+        cpuTotal -= previousCpuTotal;
+        previousCpuLoaded += cpuLoaded;
+        previousCpuTotal += cpuTotal;
+
+        String line = meminfo.readLine();
+        while(!line.startsWith("MemAvailable")) {
+            line = meminfo.readLine();
         }
+
+        long availableMem = Long.parseLong(line.replaceAll(" +", " ").split(" ")[1]);
+        belowLoadLimit = cpuLoaded / (double)cpuTotal <= MAX_LOAD && availableMem >= MIN_FREE_MEM;
     }
 
     public static class LocalNode extends Node {
-        private static final File meminfo = new File("/proc/meminfo");
-        private static final File loadavg = new File("/proc/loadavg");
-
-        private final int cores;
+        private static final File MEMINFO = new File("/proc/meminfo");
+        private static final File STAT = new File("/proc/stat");
 
         public LocalNode() {
-            this.cores = Runtime.getRuntime().availableProcessors();
-            local = this;
+            super("sw");
         }
 
         @Override
@@ -138,74 +157,28 @@ public abstract class Node {
         }
 
         @Override
-        public void execute(String... command) {
-            execute(new ProcessBuilder(command));
+        protected void calcLoadLimit() {
+            try (BufferedReader loadavg = new BufferedReader(new InputStreamReader(new FileInputStream(STAT)))) {
+                try (BufferedReader meminfo = new BufferedReader(new InputStreamReader(new FileInputStream(MEMINFO)))) {
+                    calcLoadLimit(loadavg, meminfo);
+                }
+            } catch (IOException e) {
+                BungeeCore.get().getLogger().log(Level.SEVERE, "Could not read local load", e);
+                belowLoadLimit = false;
+            }
         }
 
         @Override
-        public String getName() {
-            return "local";
-        }
-
-        @Override
-        public double getLoad() {
-            double totalMem;
-            double freeMem;
-            try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(meminfo)))) {
-                totalMem = Double.parseDouble(bufferedReader.readLine().replaceAll(" +", " ").split(" ")[1]);
-                bufferedReader.readLine();
-                freeMem = Double.parseDouble(bufferedReader.readLine().replaceAll(" +", " ").split(" ")[1]);
-            } catch (IOException e) {
-                throw new SecurityException("Could not read local memory", e);
-            }
-
-            double cpuLoad;
-            try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(new FileInputStream(loadavg)))) {
-                cpuLoad = Double.parseDouble(bufferedReader.readLine().split(" ")[0]);
-            } catch (IOException e) {
-                throw new SecurityException("Could not read local cpu", e);
-            }
-
-            return cpuLoad / cores + (freeMem > MIN_FREE_MEM ? 0 : ((totalMem - freeMem) / totalMem));
+        protected ProcessBuilder prepareExecution(String... command) {
+            return new ProcessBuilder(command);
         }
     }
 
     public static class RemoteNode extends Node {
-        private final int cores;
-        private final String remote;
 
-        public RemoteNode(String remote) {
-            this.remote = remote;
-
-            //Determine core count
-            Process process;
-            try {
-                process = new ProcessBuilder("ssh", remote, "nproc").start();
-                if(!process.waitFor(5, TimeUnit.SECONDS))
-                    throw new IOException("Timeout of " + remote + " on init");
-            } catch (IOException e) {
-                BungeeCore.get().getLogger().log(Level.SEVERE, "Could not initialize " + remote);
-                cores = 1;
-                return;
-            } catch (InterruptedException e) {
-                Thread.currentThread().interrupt();
-                cores = 1;
-                return;
-            }
-
-            int c;
-            try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
-                c = Integer.parseInt(bufferedReader.readLine());
-            } catch (IOException | NumberFormatException e) {
-                BungeeCore.get().getLogger().log(Level.SEVERE, "Could not read cores of" + remote, e);
-                c = 1;
-            }
-            cores = c;
-            BungeeCore.get().getLogger().log(Level.INFO, "Adding node " + remote + " with " + cores + " cores.");
-
-            synchronized (nodes) {
-                nodes.add(this);
-            }
+        public RemoteNode(String hostname) {
+            super(hostname);
+            BungeeCore.get().getLogger().log(Level.INFO, "Added node " + hostname);
         }
 
         @Override
@@ -214,7 +187,7 @@ public abstract class Node {
             cmd.add("ssh");
             cmd.add("-L");
             cmd.add(port + ":localhost:" + port);
-            cmd.add(remote);
+            cmd.add(hostname);
             cmd.add("cd");
             cmd.add(directory.getPath());
             cmd.add(";");
@@ -223,43 +196,30 @@ public abstract class Node {
         }
 
         @Override
-        public void execute(String... command) {
+        protected ProcessBuilder prepareExecution(String... command) {
             List<String> cmd = new ArrayList<>();
             cmd.add("ssh");
-            cmd.add(remote);
+            cmd.add(hostname);
             cmd.addAll(Arrays.asList(command));
-            execute(new ProcessBuilder(cmd));
+            return new ProcessBuilder(cmd);
         }
 
         @Override
-        public String getName() {
-            return remote;
-        }
-
-        @Override
-        public double getLoad() {
-            Process process;
+        protected void calcLoadLimit() {
             try {
-                process = new ProcessBuilder("ssh", remote, "cat /proc/loadavg;cat /proc/meminfo").start();
-                if(!process.waitFor(1, TimeUnit.SECONDS))
-                    return Double.POSITIVE_INFINITY;
+                Process process = prepareExecution("cat /proc/stat /proc/meminfo").start();
+                if(process.waitFor(1, TimeUnit.SECONDS))
+                    throw new IOException(hostname + " timeout");
+                try (BufferedReader reader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
+                    calcLoadLimit(reader, reader);
+                }
             } catch (IOException e) {
-                BungeeCore.get().getLogger().log(Level.SEVERE, "Could starting process to read load", e);
-                return Double.POSITIVE_INFINITY;
+                if(belowLoadLimit)
+                    BungeeCore.get().getLogger().log(Level.SEVERE, "Could read remote load", e);
+                belowLoadLimit = false;
             } catch (InterruptedException e) {
                 Thread.currentThread().interrupt();
-                return Double.POSITIVE_INFINITY;
-            }
-
-            try (BufferedReader bufferedReader = new BufferedReader(new InputStreamReader(process.getInputStream()))) {
-                double cpuLoad = Double.parseDouble(bufferedReader.readLine().split(" ")[0]);
-                double totalMem = Double.parseDouble(bufferedReader.readLine().replaceAll(" +", " ").split(" ")[1]);
-                bufferedReader.readLine();
-                double freeMem = Double.parseDouble(bufferedReader.readLine().replaceAll(" +", " ").split(" ")[1]);
-                return cpuLoad / cores + (freeMem > MIN_FREE_MEM ? 0 : ((totalMem - freeMem) / totalMem));
-            } catch (IOException e) {
-                BungeeCore.get().getLogger().log(Level.SEVERE, "Could read load", e);
-                return Double.POSITIVE_INFINITY;
+                belowLoadLimit = false;
             }
         }
     }
diff --git a/src/de/steamwar/bungeecore/ServerStarter.java b/src/de/steamwar/bungeecore/ServerStarter.java
index c6bdca04..9373b57f 100644
--- a/src/de/steamwar/bungeecore/ServerStarter.java
+++ b/src/de/steamwar/bungeecore/ServerStarter.java
@@ -4,10 +4,13 @@ import de.steamwar.bungeecore.sql.EventFight;
 import de.steamwar.bungeecore.sql.SteamwarUser;
 import de.steamwar.bungeecore.sql.Team;
 import de.steamwar.bungeecore.sql.Tutorial;
+import de.steamwar.messages.ChatSender;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
 import java.io.File;
+import java.io.IOException;
 import java.net.InetSocketAddress;
+import java.nio.file.Files;
 import java.time.format.DateTimeFormatter;
 import java.util.*;
 import java.util.function.BooleanSupplier;
@@ -19,12 +22,16 @@ public class ServerStarter {
     private static final Portrange BAU_PORTS = BungeeCore.MAIN_SERVER ? new Portrange(10100, 20000) : new Portrange(2100, 2200);
     private static final Portrange ARENA_PORTS = BungeeCore.MAIN_SERVER ? new Portrange(3000, 3100) : (BungeeCore.EVENT_MODE ? new Portrange(4000, 5000) : BAU_PORTS);
 
-    private static final String BACKBONE = System.getProperty("user.home") + "/";
-    private static final String SERVER_PATH = BACKBONE + "server/";
-    private static final String EVENT_PATH = BACKBONE + "event/";
-    public static final String TEMP_WORLD_PATH =  BACKBONE + "arenaserver/";
-    public static final String TUTORIAL_PATH = BACKBONE + "tutorials/";
-    public static final String WORLDS19_PATH = BACKBONE + "userworlds19/";
+    private static final String SERVER_PATH = "/servers/";
+    private static final String USER_HOME = System.getProperty("user.home") + "/";
+    private static final String EVENT_PATH = USER_HOME + "event/";
+    public static final String TEMP_WORLD_PATH =  USER_HOME + "arenaserver/";
+    public static final String TUTORIAL_PATH = USER_HOME + "tutorials/";
+    public static final String WORLDS12_PATH = USER_HOME + "userworlds/";
+    public static final String WORLDS15_PATH = USER_HOME + "userworlds15/";
+    public static final String WORLDS19_PATH = USER_HOME + "userworlds19/";
+
+    public static final String BUILDER_BASE_PATH = USER_HOME + "builder";
 
     private File directory = null;
     private String worldDir = null;
@@ -61,7 +68,7 @@ public class ServerStarter {
 
     public ServerStarter event(EventFight eventFight) {
         arena(eventFight.getSpielmodus(), eventFight.getMap());
-        node = Node.local;
+        node = BungeeCore.local;
         worldDir = EVENT_PATH;
         worldCleanup = () -> {};
         arguments.put("fightID", String.valueOf(eventFight.getFightID()));
@@ -109,7 +116,7 @@ public class ServerStarter {
 
     public ServerStarter build19(UUID owner) {
         directory = new File(SERVER_PATH, "Bau19");
-        serverJar = "paper-1.19.1.jar";
+        serverJar = "paper-1.19.2.jar";
         worldDir = WORLDS19_PATH;
         worldName = String.valueOf(SteamwarUser.get(owner).getId());
         buildWithWorld(owner, new File(directory, "Bauwelt").getPath());
@@ -118,19 +125,19 @@ public class ServerStarter {
 
     public ServerStarter build15(UUID owner) {
         directory = new File(SERVER_PATH, "Bau15");
-        worldDir = BungeeCore.USERWORLDS15;
+        worldDir = WORLDS15_PATH;
         worldName = String.valueOf(SteamwarUser.get(owner).getId());
-        buildWithWorld(owner, BungeeCore.BAUWELT15);
+        buildWithWorld(owner, new File(directory, "Bauwelt").getPath());
         return this;
     }
 
     public ServerStarter build12(UUID owner) {
-        directory = new File(SERVER_PATH, "UserBau");
+        directory = new File(SERVER_PATH, "Bau12");
         serverJar = "spigot-1.12.2.jar";
         xmx = "256M";
-        worldDir = BungeeCore.WORLD_FOLDER;
+        worldDir = WORLDS12_PATH;
         worldName = owner.toString();
-        buildWithWorld(owner, BungeeCore.BAUWELT_PROTOTYP);
+        buildWithWorld(owner, new File(directory, "Bauwelt").getPath());
         return this;
     }
 
@@ -194,6 +201,40 @@ public class ServerStarter {
         serverNameProvider = port -> bauServerName(SteamwarUser.get(owner));
     }
 
+    public ServerStarter builder(Version version, String map, File generator) {
+        serverJar = version.getServerJar();
+        directory = version.getServerDirectory("Builder");
+        worldDir = version.getWorldFolder(BUILDER_BASE_PATH);
+        worldName = map;
+        serverNameProvider = port -> "⛏" + map;
+        constructor = (serverName, port, builder, shutdownCallback) -> new Builderserver(serverName, worldName, port, builder, shutdownCallback);
+
+        // Send players to existing server
+        startCondition = () -> {
+            for(Subserver subserver : Subserver.getServerList()) {
+                if(subserver.getType() == Servertype.BUILDER && ((Builderserver)subserver).getMap().equals(worldName)) {
+                    for(ProxiedPlayer p : playersToSend)
+                        SubserverSystem.sendPlayer(subserver, p);
+                    return false;
+                }
+            }
+            return true;
+        };
+
+        if(generator != null) {
+            worldSetup = () -> {
+                File leveldat = new File(new File(worldDir, worldName), "level.dat");
+                try {
+                    Files.copy(generator.toPath(), leveldat.toPath());
+                } catch (IOException e) {
+                    throw new SecurityException(e);
+                }
+            };
+        }
+
+        return this;
+    }
+
     public ServerStarter send(ProxiedPlayer player) {
         playersToSend.add(player);
         return this;
@@ -206,8 +247,15 @@ public class ServerStarter {
         int port = portrange.freePort();
         String serverName = serverNameProvider.apply(port);
 
-        if(node == null)
+        if(node == null) {
             node = Node.getNode();
+            if(node == null) {
+                for (ProxiedPlayer p : playersToSend)
+                    ChatSender.of(p).system("SERVER_START_OVERLOAD");
+
+                return null;
+            }
+        }
         if(worldName == null)
             worldName = serverToWorldName(serverName);
 
@@ -285,4 +333,30 @@ public class ServerStarter {
             return result;
         }
     }
-}
+
+    public enum Version {
+        SPIGOT_12("spigot-1.12.2.jar", 12),
+        SPIGOT_15("spigot-1.15.2.jar", 15),
+        PAPER_19("paper-1.19.2.jar", 19);
+
+        private final String serverJar;
+        private final int versionSuffix;
+
+        Version(String serverJar, int versionSuffix) {
+            this.serverJar = serverJar;
+            this.versionSuffix = versionSuffix;
+        }
+
+        public String getServerJar() {
+            return serverJar;
+        }
+
+        public String getWorldFolder(String base) {
+            return base + versionSuffix + "/";
+        }
+
+        public File getServerDirectory(String base) {
+            return new File(SERVER_PATH, base + versionSuffix);
+        }
+    }
+}
\ No newline at end of file
diff --git a/src/de/steamwar/bungeecore/commands/BauCommand.java b/src/de/steamwar/bungeecore/commands/BauCommand.java
index 6a4e4a63..dbfa4238 100644
--- a/src/de/steamwar/bungeecore/commands/BauCommand.java
+++ b/src/de/steamwar/bungeecore/commands/BauCommand.java
@@ -257,8 +257,8 @@ public class BauCommand extends BasicCommand {
         SteamwarUser user = SteamwarUser.get(p.getUniqueId());
         versionSelector(p, args, 1,
                 () -> deleteConfirmation(p, () -> deleteWorld(p, ServerStarter.WORLDS19_PATH + user.getId())),
-                () -> deleteConfirmation(p, () -> deleteWorld(p, BungeeCore.USERWORLDS15 + user.getId())),
-                () -> deleteConfirmation(p, () -> deleteWorld(p, BungeeCore.WORLD_FOLDER + p.getUniqueId().toString())),
+                () -> deleteConfirmation(p, () -> deleteWorld(p, ServerStarter.WORLDS15_PATH + user.getId())),
+                () -> deleteConfirmation(p, () -> deleteWorld(p, ServerStarter.WORLDS12_PATH + p.getUniqueId().toString())),
                 () -> HelpCommand.sendBauHelp(ChatSender.of(p)));
     }
 
@@ -282,7 +282,7 @@ public class BauCommand extends BasicCommand {
                     break;
                 }
             }
-            SubserverSystem.deleteFolder(Node.local, world);
+            SubserverSystem.deleteFolder(BungeeCore.local, world);
             Message.send("BAU_DELETE_DELETED", player);
         });
     }
diff --git a/src/de/steamwar/bungeecore/commands/BuilderCloudCommand.java b/src/de/steamwar/bungeecore/commands/BuilderCloudCommand.java
new file mode 100644
index 00000000..54369197
--- /dev/null
+++ b/src/de/steamwar/bungeecore/commands/BuilderCloudCommand.java
@@ -0,0 +1,121 @@
+package de.steamwar.bungeecore.commands;
+
+import de.steamwar.bungeecore.ServerStarter;
+import de.steamwar.command.SWCommand;
+import de.steamwar.command.TypeMapper;
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+import java.io.File;
+import java.util.*;
+import java.util.stream.Collectors;
+
+public class BuilderCloudCommand extends SWCommand {
+
+    private final Map<String, ServerStarter.Version> versionMap = new HashMap<>();
+
+    public BuilderCloudCommand() {
+        super("buildercloud", "bungeecore.server.team");
+
+        versionMap.put("15", ServerStarter.Version.SPIGOT_15);
+        versionMap.put("1.15", ServerStarter.Version.SPIGOT_15);
+        versionMap.put("1.15.2", ServerStarter.Version.SPIGOT_15);
+        versionMap.put("19", ServerStarter.Version.PAPER_19);
+        versionMap.put("1.19", ServerStarter.Version.PAPER_19);
+        versionMap.put("1.19.2", ServerStarter.Version.PAPER_19);
+    }
+
+    @Register(description = "BUILDERCLOUD_USAGE")
+    public void genericCommand(ProxiedPlayer player, @ErrorMessage("BUILDERCLOUD_VERSION") ServerStarter.Version version, @Mapper("map") String map, @OptionalValue("") @Mapper("generator") @AllowNull File generator) {
+        new ServerStarter().builder(version, map, generator).send(player).start();
+    }
+
+    @ClassMapper(value = ServerStarter.Version.class, local = true)
+    private TypeMapper<ServerStarter.Version> versionTypeMapper() {
+        return new TypeMapper<ServerStarter.Version>() {
+            @Override
+            public ServerStarter.Version map(CommandSender commandSender, String[] previousArguments, String s) {
+                return versionMap.get(s);
+            }
+
+            @Override
+            public Collection<String> tabCompletes(CommandSender sender, String[] previousArguments, String s) {
+                return versionMap.keySet();
+            }
+        };
+    }
+
+    @Cached(global = true)
+    @Mapper(value = "map", local = true)
+    private TypeMapper<String> mapTypeMapper() {
+
+        return new TypeMapper<String>() {
+            @Override
+            public String map(CommandSender commandSender, String[] previousArguments, String s) {
+                File folder = getWorldFolder(previousArguments, 1);
+
+                if(folder == null)
+                    return null;
+
+                File map = new File(folder, s);
+                if(!map.exists() && !map.mkdir())
+                    return null;
+
+                return map.getName();
+            }
+
+            @Override
+            public Collection<String> tabCompletes(CommandSender sender, String[] previousArguments, String s) {
+                File folder = getWorldFolder(previousArguments, 1);
+
+                String[] files;
+                if(folder == null || (files = folder.list()) == null)
+                    return Collections.emptyList();
+
+                return Arrays.stream(files).filter(file -> new File(folder, file).isDirectory()).collect(Collectors.toList());
+            }
+        };
+    }
+
+    @Cached(global = true)
+    @Mapper(value = "generator", local = true)
+    private TypeMapper<File> generatorTypeMapper() {
+
+        return new TypeMapper<File>() {
+            @Override
+            public File map(CommandSender commandSender, String[] previousArguments, String s) {
+                if(s.equals(""))
+                    return null;
+
+                File folder = getWorldFolder(previousArguments, 2);
+
+                if(folder == null)
+                    throw new SecurityException();
+
+                File generator = new File(folder, s + ".dat");
+                if(!generator.exists() || !generator.isFile())
+                    throw new SecurityException();
+
+                return generator;
+            }
+
+            @Override
+            public Collection<String> tabCompletes(CommandSender sender, String[] previousArguments, String s) {
+                File folder = getWorldFolder(previousArguments, 2);
+
+                String[] files;
+                if(folder == null || (files = folder.list()) == null)
+                    return Collections.emptyList();
+
+                return Arrays.stream(files).filter(file -> new File(folder, file).isFile()).filter(file -> file.endsWith(".dat")).map(file -> file.substring(0, file.length() - 4)).collect(Collectors.toList());
+            }
+        };
+    }
+
+    private File getWorldFolder(String[] previousArguments, int offset) {
+        ServerStarter.Version v = versionMap.get(previousArguments[previousArguments.length - offset]);
+        if(v == null)
+            return null;
+        return new File(v.getWorldFolder(ServerStarter.BUILDER_BASE_PATH));
+    }
+}
diff --git a/src/de/steamwar/bungeecore/commands/ChallengeCommand.java b/src/de/steamwar/bungeecore/commands/ChallengeCommand.java
index 92fa0a72..6f050ac9 100644
--- a/src/de/steamwar/bungeecore/commands/ChallengeCommand.java
+++ b/src/de/steamwar/bungeecore/commands/ChallengeCommand.java
@@ -20,88 +20,75 @@
 package de.steamwar.bungeecore.commands;
 
 import de.steamwar.bungeecore.*;
-import de.steamwar.bungeecore.listeners.mods.ModLoaderBlocker;
 import de.steamwar.bungeecore.sql.IgnoreSystem;
-import net.md_5.bungee.api.CommandSender;
-import net.md_5.bungee.api.ProxyServer;
+import de.steamwar.command.SWCommand;
+import de.steamwar.command.TypeValidator;
 import net.md_5.bungee.api.chat.ClickEvent;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
-import java.util.ArrayList;
 import java.util.LinkedList;
 
 import static de.steamwar.bungeecore.Storage.challenges;
 
-public class ChallengeCommand extends BasicCommand {
+public class ChallengeCommand extends SWCommand {
 
     public ChallengeCommand() {
-        super("challenge", "");
+        super("challenge");
     }
 
-    @Override
-    public void execute(CommandSender sender, String[] args) {
-        if(args.length < 1){
-            Message.send("CHALLENGE_USAGE", sender);
-            return;
-        }
-        
-        if (!(sender instanceof ProxiedPlayer))
-            return;
-
-        if(ModLoaderBlocker.isFabric((ProxiedPlayer) sender))  {
-            Message.send("MODLOADER_DENIED", sender);
-            return;
-        }
-
-        ProxiedPlayer target = ProxyServer.getInstance().getPlayer(args[0]);
-        if(target == null){
-            Message.send("CHALLENGE_OFFLINE", sender);
-            return;
-        }else if(target == sender){
-            Message.send("CHALLENGE_SELF", sender);
-            return;
-        }else if (IgnoreSystem.isIgnored(target, (ProxiedPlayer) sender)) {
-            Message.send("CHALLENGE_IGNORED", sender);
-            return;
-        }
-
-        Subserver subserver = Subserver.getSubserver(target);
-        if(subserver != null && subserver.getType() == Servertype.ARENA){
-            Message.send("CHALLENGE_INARENA", sender);
-            return;
-        }
-
-        FightCommand.createArena(sender, "/challenge " + target.getName() + " ", false, args, 1, false, (player, mode, map) -> {
-            if(challenges.containsKey(target) && challenges.get(target).contains(player)){
+    @Register(description = "CHALLENGE_USAGE")
+    public void challenge(@Validator("arenaPlayer") ProxiedPlayer player, @Validator("target") ProxiedPlayer target, @Mapper("nonHistoricArenaMode") @OptionalValue("") @AllowNull ArenaMode arenaMode, @Mapper("arenaMap") @OptionalValue("") @AllowNull String map) {
+        FightCommand.createArena(player, "/challenge " + target.getName() + " ", false, arenaMode, map, false, (p, mode, m) -> {
+            if(challenges.containsKey(target) && challenges.get(target).contains(p)){
                 challenges.remove(target);
-                challenges.remove(player);
+                challenges.remove(p);
 
                 Subserver arena = new ServerStarter().arena(mode, map).blueLeader(player).redLeader(target).start();
-                Message.broadcast("CHALLENGE_BROADCAST", "CHALLENGE_BROADCAST_HOVER",
-                        new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/arena " + arena.getServer().getName()), mode.getDisplayName(), player.getName(), target.getName());
+                if(arena != null) {
+                    Message.broadcast("CHALLENGE_BROADCAST", "CHALLENGE_BROADCAST_HOVER",
+                            new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/arena " + arena.getServer().getName()), mode.getDisplayName(), p.getName(), target.getName());
+                }
             }else{
-                if(!challenges.containsKey(player)){
-                    challenges.put(player, new LinkedList<>());
+                if(!challenges.containsKey(p)){
+                    challenges.put(p, new LinkedList<>());
                 }
 
-                challenges.get(player).add(target);
+                challenges.get(p).add(target);
 
-                Message.send("CHALLENGE_CHALLENGED", player, target.getName(), mode.getDisplayName());
-                Message.send("CHALLENGE_CHALLENGED_TARGET", target, player.getName(), mode.getDisplayName(), mode.getMaps().size()!=1?Message.parse("CHALLENGE_CHALLENGED_MAP", target, map):"");
+                Message.send("CHALLENGE_CHALLENGED", p, target.getName(), mode.getDisplayName());
+                Message.send("CHALLENGE_CHALLENGED_TARGET", target, p.getName(), mode.getDisplayName(), mode.getMaps().size() != 1 ? Message.parse("CHALLENGE_CHALLENGED_MAP", target, m) : "");
 
-                Message.send("CHALLENGE_ACCEPT", target, Message.parse("CHALLENGE_ACCEPT_HOVER", target), new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/challenge " + player.getName() + " " + mode.getChatName() + " " + map));
+                Message.send("CHALLENGE_ACCEPT", target, Message.parse("CHALLENGE_ACCEPT_HOVER", target), new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/challenge " + p.getName() + " " + mode.getChatName() + " " + m));
             }
         });
     }
 
+    @Validator(value = "target", local = true)
+    public TypeValidator<ProxiedPlayer> targetValidator() {
+        return (sender, value, messageSender) -> {
+            if (value == null) {
+                messageSender.send("CHALLENGE_OFFLINE");
+                return false;
+            }
+            if (sender == value) {
+                messageSender.send("CHALLENGE_SELF");
+                return false;
+            }
+            if (IgnoreSystem.isIgnored(value, (ProxiedPlayer) sender)) {
+                messageSender.send("CHALLENGE_IGNORED");
+                return false;
+            }
+
+            Subserver subserver = Subserver.getSubserver(value);
+            if (subserver != null && subserver.getType() == Servertype.ARENA) {
+                messageSender.send("CHALLENGE_INARENA");
+                return false;
+            }
+            return true;
+        };
+    }
+
     public static void remove(ProxiedPlayer player){
         challenges.remove(player);
     }
-
-    @Override
-    public Iterable<String> onTabComplete(CommandSender commandSender, String[] args) {
-        if(args.length == 2)
-            return ArenaMode.getAllChatNames(false);
-        return new ArrayList<>();
-    }
 }
diff --git a/src/de/steamwar/bungeecore/commands/DevCommand.java b/src/de/steamwar/bungeecore/commands/DevCommand.java
index 4f064084..5858a49e 100644
--- a/src/de/steamwar/bungeecore/commands/DevCommand.java
+++ b/src/de/steamwar/bungeecore/commands/DevCommand.java
@@ -19,6 +19,7 @@
 
 package de.steamwar.bungeecore.commands;
 
+import de.steamwar.bungeecore.Message;
 import de.steamwar.bungeecore.sql.Punishment;
 import de.steamwar.bungeecore.sql.SteamwarUser;
 import de.steamwar.command.*;
@@ -42,7 +43,7 @@ public class DevCommand extends SWCommand {
     }
 
     @Register
-    public void simpleCommand(@Guard ProxiedPlayer player) {
+    public void simpleCommand(@Validator ProxiedPlayer player) {
         updateDevServers();
         ChatSender sender = ChatSender.of(player);
         if (devServers.isEmpty()) {
@@ -63,7 +64,7 @@ public class DevCommand extends SWCommand {
     }
 
     @Register
-    public void selectedCommand(@Guard ProxiedPlayer player, @Mapper("dev") String name) {
+    public void selectedCommand(@Validator ProxiedPlayer player, @Mapper("dev") String name) {
         updateDevServers();
         ChatSender sender = ChatSender.of(player);
         ServerInfo info = devServers.get(name.toLowerCase());
@@ -75,20 +76,16 @@ public class DevCommand extends SWCommand {
         player.connect(info);
     }
 
-    @ClassGuard(value = ProxiedPlayer.class, local = true)
-    public GuardChecker punishmentGuardChecker() {
-        return (commandSender, guardCheckType, previousArguments, s) -> {
-            ChatSender sender = ChatSender.of(commandSender);
-            if (guardCheckType == GuardCheckType.COMMAND) {
-                if (sender.user().isPunishedWithMessage(sender, Punishment.PunishmentType.NoDevServer)) {
-                    return GuardResult.DENIED;
-                }
-            } else {
-                if (sender.user().isPunished(Punishment.PunishmentType.NoDevServer)) {
-                    return GuardResult.DENIED;
-                }
+    @ClassValidator(value = ProxiedPlayer.class, local = true)
+    public TypeValidator<ProxiedPlayer> punishmentGuardChecker() {
+        return (sender, value, messageSender) -> {
+            SteamwarUser user = SteamwarUser.get(value);
+            if (user.isPunished(Punishment.PunishmentType.NoDevServer)) {
+                Message message = user.punishmentMessage(Punishment.PunishmentType.NoDevServer);
+                messageSender.send(message.getFormat(), message.getParams());
+                return false;
             }
-            return GuardResult.ALLOWED;
+            return true;
         };
     }
 
diff --git a/src/de/steamwar/bungeecore/commands/FightCommand.java b/src/de/steamwar/bungeecore/commands/FightCommand.java
index 32730168..ad6b08af 100644
--- a/src/de/steamwar/bungeecore/commands/FightCommand.java
+++ b/src/de/steamwar/bungeecore/commands/FightCommand.java
@@ -24,6 +24,7 @@ import de.steamwar.bungeecore.inventory.SWInventory;
 import de.steamwar.bungeecore.inventory.SWItem;
 import de.steamwar.bungeecore.listeners.mods.ModLoaderBlocker;
 import de.steamwar.bungeecore.sql.Punishment;
+import de.steamwar.command.SWCommand;
 import de.steamwar.messages.ChatSender;
 import net.md_5.bungee.api.ChatColor;
 import net.md_5.bungee.api.ChatMessageType;
@@ -34,8 +35,6 @@ import net.md_5.bungee.api.chat.TextComponent;
 import net.md_5.bungee.api.chat.hover.content.Text;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
-import java.util.LinkedList;
-
 /**
  * Jeder Fightcommand (auch bau testarena und challenge) haben folgende Optionskette:
  *
@@ -45,7 +44,7 @@ import java.util.LinkedList;
  * Sollte die Map fehlen, kann sie mit getMap() bestimmt werden.
  */
 
-public class FightCommand extends BasicCommand {
+public class FightCommand extends SWCommand {
 
     public FightCommand() {
         super("fight", "", "f");
@@ -98,7 +97,7 @@ public class FightCommand extends BasicCommand {
             String command = precommand + mode.getChatName() + " Random";
             start.setBold(true);
             start.setColor(ChatColor.GRAY);
-            start.setText(sender.parseToLegacy("FIGHT_ARENA_RANDOM") + " ");
+            start.setText(sender.parseToPlain("FIGHT_ARENA_RANDOM") + " ");
             start.setHoverEvent(new HoverEvent(HoverEvent.Action.SHOW_TEXT, new Text("§e" + command)));
             start.setClickEvent(new ClickEvent(ClickEvent.Action.RUN_COMMAND, command));
             current = new TextComponent();
@@ -129,6 +128,35 @@ public class FightCommand extends BasicCommand {
         return false;
     }
 
+    static void createArena(ProxiedPlayer player, String precommand, boolean allowMerging, ArenaMode arenaMode, String map, boolean historic, FightCallback callback) {
+        ChatSender sender = ChatSender.of(player);
+
+        if(alreadyInArena(player))
+            return;
+
+        if (arenaMode == null) {
+            getModes(sender, precommand, historic);
+            return;
+        }
+
+        if (map == null) {
+            if (arenaMode.getMaps().size() == 1) {
+                map = arenaMode.getRandomMap();
+            } else {
+                getMaps(sender, precommand, arenaMode);
+                return;
+            }
+        } else if (map.equalsIgnoreCase("random")) {
+            map = arenaMode.getRandomMap();
+        }
+
+        if (!allowMerging) {
+            callback.run(player, arenaMode, map);
+        } else {
+            suggestMerging(player, arenaMode, map, callback);
+        }
+    }
+
     static void createArena(CommandSender s, String precommand, boolean allowMerging, String[] args, int startArg, boolean historic, FightCallback callback){
         if(!(s instanceof ProxiedPlayer))
             return;
@@ -216,28 +244,17 @@ public class FightCommand extends BasicCommand {
         inventory.open();
     }
 
-    @Override
-    public void execute(CommandSender sender, String[] args) {
-        createArena(sender, "/fight ", true, args, 0, false, (player, mode, map) -> {
-            Subserver arena = new ServerStarter().arena(mode, map).blueLeader(player).start();
-            Message.broadcast("FIGHT_BROADCAST", "FIGHT_BROADCAST_HOVER"
-                    , new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/arena " + arena.getServer().getName()), mode.getDisplayName(), player.getName());
+    @Register
+    public void fight(@Validator("arenaPlayer") ProxiedPlayer player, @Mapper("nonHistoricArenaMode") @OptionalValue("") @AllowNull ArenaMode arenaMode, @Mapper("arenaMap") @OptionalValue("") @AllowNull String map) {
+        createArena(player, "/fight ", true, arenaMode, map, false, (p, mode, m) -> {
+            Subserver arena = new ServerStarter().arena(mode, m).blueLeader(p).start();
+            if(arena != null) {
+                Message.broadcast("FIGHT_BROADCAST", "FIGHT_BROADCAST_HOVER"
+                        , new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/arena " + arena.getServer().getName()), mode.getDisplayName(), p.getName());
+            }
         });
     }
 
-    @Override
-    public Iterable<String> onTabComplete(CommandSender commandSender, String[] args) {
-        if(args.length == 1){
-            return ArenaMode.getAllChatNames(false);
-        }else if(args.length == 2){
-            ArenaMode mode = ArenaMode.getByChat(args[1]);
-            if(mode == null)
-                return new LinkedList<>();
-            return mode.getMaps();
-        }
-        return new LinkedList<>();
-    }
-
     /**
      * Is called when arena parameters are clear.
      */
diff --git a/src/de/steamwar/bungeecore/commands/HelpCommand.java b/src/de/steamwar/bungeecore/commands/HelpCommand.java
index 87bfe363..d3fb3fec 100644
--- a/src/de/steamwar/bungeecore/commands/HelpCommand.java
+++ b/src/de/steamwar/bungeecore/commands/HelpCommand.java
@@ -36,17 +36,17 @@ public class HelpCommand extends BasicCommand {
         if (args.length < 1) {
             printPage(sender, ClickEvent.Action.RUN_COMMAND,
                     "HELP_LOBBY", "/l",
-                    "HELP_BAU", "/bau",
-                    "HELP_BAUSERVER", "/help bau",
+                    "HELP_BAU", "/build",
+                    "HELP_BAUSERVER", "/help build",
                     "HELP_FIGHT", "/fight",
                     "HELP_CHALLENGE", "/challenge",
                     "HELP_HISTORIC", "/historic",
                     "HELP_TEAM", "/team",
                     "HELP_JOIN", "/join",
                     "HELP_LOCAL", "/local");
-        }else if (args[0].equalsIgnoreCase("bauserver")) {
+        }else if (args[0].equalsIgnoreCase("buildserver")) {
             sendBauHelp(sender);
-        }else if (args[0].equalsIgnoreCase("bau")) {
+        }else if (args[0].equalsIgnoreCase("build")) {
             bauHelpGroup(sender, args);
         }
     }
@@ -86,24 +86,24 @@ public class HelpCommand extends BasicCommand {
 
     private static void sendBauHelpGroup(ChatSender sender) {
         printPage(sender, ClickEvent.Action.RUN_COMMAND,
-                "HELP_BAU_GROUP_ADMIN", "/help bau admin",
-                "HELP_BAU_GROUP_WORLD", "/help bau world",
-                "HELP_BAU_GROUP_PLAYER", "/help bau player",
-                "HELP_BAU_GROUP_WE", "/help bau we",
-                "HELP_BAU_GROUP_OTHER", "/help bau other");
+                "HELP_BAU_GROUP_ADMIN", "/help build admin",
+                "HELP_BAU_GROUP_WORLD", "/help build world",
+                "HELP_BAU_GROUP_PLAYER", "/help build player",
+                "HELP_BAU_GROUP_WE", "/help build we",
+                "HELP_BAU_GROUP_OTHER", "/help build other");
     }
 
     static void sendBauHelp(ChatSender sender) {
         printPage(sender, ClickEvent.Action.SUGGEST_COMMAND,
-                "HELP_BAU_TP", "/bau tp ",
-                "HELP_BAU_ADDMEMBER", "/bau addmember ",
-                "HELP_BAU_DELMEMBER", "/bau delmember ",
-                "HELP_BAU_TOGGLEWE", "/bau togglewe ",
-                "HELP_BAU_TOGGLEWORLD", "/bau toggleworld ",
-                "HELP_BAU_DELETE", "/bau delete ",
-                "HELP_BAU_TESTARENA", "/bau testarena ",
-                "HELP_BAU_LOCK", "/bau lock",
-                "HELP_BAU_UNLOCK", "/bau unlock");
+                "HELP_BAU_TP", "/build tp ",
+                "HELP_BAU_ADDMEMBER", "/build addmember ",
+                "HELP_BAU_DELMEMBER", "/build delmember ",
+                "HELP_BAU_TOGGLEWE", "/build togglewe ",
+                "HELP_BAU_TOGGLEWORLD", "/build toggleworld ",
+                "HELP_BAU_DELETE", "/build delete ",
+                "HELP_BAU_TESTARENA", "/build testarena ",
+                "HELP_BAU_LOCK", "/build lock ",
+                "HELP_BAU_UNLOCK", "/build unlock");
     }
 
     private static void printPage(ChatSender sender, ClickEvent.Action action, String... args) {
diff --git a/src/de/steamwar/bungeecore/commands/HistoricCommand.java b/src/de/steamwar/bungeecore/commands/HistoricCommand.java
index b056c917..03e7abbb 100644
--- a/src/de/steamwar/bungeecore/commands/HistoricCommand.java
+++ b/src/de/steamwar/bungeecore/commands/HistoricCommand.java
@@ -23,35 +23,23 @@ import de.steamwar.bungeecore.ArenaMode;
 import de.steamwar.bungeecore.Message;
 import de.steamwar.bungeecore.ServerStarter;
 import de.steamwar.bungeecore.Subserver;
-import net.md_5.bungee.api.CommandSender;
+import de.steamwar.command.SWCommand;
 import net.md_5.bungee.api.chat.ClickEvent;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
 
-import java.util.LinkedList;
-
-public class HistoricCommand extends BasicCommand {
+public class HistoricCommand extends SWCommand {
     public HistoricCommand() {
         super("historic", null);
     }
 
-    @Override
-    public void execute(CommandSender sender, String[] args) {
-        FightCommand.createArena(sender, "/historic ", true, args, 0, true, (player, mode, map) -> {
-            Subserver arena = new ServerStarter().arena(mode, map).blueLeader(player).start();
-            Message.broadcast("HISTORIC_BROADCAST", "HISTORIC_BROADCAST_HOVER"
-                    , new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/arena " + arena.getServer().getName()), mode.getDisplayName(), player.getName());
+    @Register
+    public void historic(@Validator("arenaPlayer") ProxiedPlayer player, @Mapper("nonHistoricArenaMode") @OptionalValue("") @AllowNull ArenaMode arenaMode, @Mapper("arenaMap") @OptionalValue("") @AllowNull String map) {
+        FightCommand.createArena(player, "/historic ", true, arenaMode, map, true, (p, mode, m) -> {
+            Subserver arena = new ServerStarter().arena(mode, m).blueLeader(p).start();
+            if(arena != null) {
+                Message.broadcast("HISTORIC_BROADCAST", "HISTORIC_BROADCAST_HOVER",
+                        new ClickEvent(ClickEvent.Action.RUN_COMMAND, "/arena " + arena.getServer().getName()), mode.getDisplayName(), p.getName());
+            }
         });
     }
-
-    @Override
-    public Iterable<String> onTabComplete(CommandSender commandSender, String[] args) {
-        if(args.length == 1){
-            return ArenaMode.getAllChatNames(true);
-        }else if(args.length == 2){
-            ArenaMode mode = ArenaMode.getByChat(args[1]);
-            if(mode == null)
-                return new LinkedList<>();
-            return mode.getMaps();
-        }
-        return new LinkedList<>();
-    }
 }
diff --git a/src/de/steamwar/bungeecore/commands/JoinmeCommand.java b/src/de/steamwar/bungeecore/commands/JoinmeCommand.java
index 105063c0..e897ba0e 100644
--- a/src/de/steamwar/bungeecore/commands/JoinmeCommand.java
+++ b/src/de/steamwar/bungeecore/commands/JoinmeCommand.java
@@ -69,6 +69,10 @@ public class JoinmeCommand extends BasicCommand {
                             SubserverSystem.sendDeniedMessage(player, bauserver.getOwner());
                             Message.send("JOIN_PLAYER_BLOCK", player);
                         }
+                    } else if(type == Servertype.BUILDER && !player.hasPermission("bungeecore.server.team")) {
+                        Message.send("JOIN_PLAYER_BLOCK", player);
+                    } else {
+                        SubserverSystem.sendPlayer(subserver, player);
                     }
                 }else if(serverPerm != null && !player.hasPermission(serverPerm)){
                     Message.send("JOIN_PLAYER_BLOCK", player);
diff --git a/src/de/steamwar/bungeecore/commands/PollCommand.java b/src/de/steamwar/bungeecore/commands/PollCommand.java
index e6fb7550..5e179cda 100644
--- a/src/de/steamwar/bungeecore/commands/PollCommand.java
+++ b/src/de/steamwar/bungeecore/commands/PollCommand.java
@@ -23,11 +23,8 @@ import de.steamwar.bungeecore.Message;
 import de.steamwar.bungeecore.listeners.PollSystem;
 import de.steamwar.bungeecore.sql.PollAnswer;
 import de.steamwar.bungeecore.sql.SteamwarUser;
-import de.steamwar.command.GuardCheckType;
-import de.steamwar.command.GuardChecker;
-import de.steamwar.command.GuardResult;
 import de.steamwar.command.SWCommand;
-import net.md_5.bungee.api.CommandSender;
+import de.steamwar.command.TypeValidator;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
 public class PollCommand extends SWCommand {
@@ -37,12 +34,12 @@ public class PollCommand extends SWCommand {
     }
 
     @Register
-    public void genericCommand(@Guard ProxiedPlayer player) {
+    public void genericCommand(ProxiedPlayer player) {
         PollSystem.sendPoll(player);
     }
 
     @Register(noTabComplete = true)
-    public void answerPoll(@Guard ProxiedPlayer player, String answerString) {
+    public void answerPoll(@Validator ProxiedPlayer player, String answerString) {
         int answer;
         try {
             answer = Integer.parseUnsignedInt(answerString);
@@ -62,16 +59,14 @@ public class PollCommand extends SWCommand {
         pollAnswer.setAnswer(answer);
     }
 
-    @ClassGuard(value = ProxiedPlayer.class, local = true)
-    public GuardChecker noPoll() {
-        return (commandSender, guardCheckType, previousArguments, s) -> {
+    @ClassValidator(value = ProxiedPlayer.class, local = true)
+    public TypeValidator<ProxiedPlayer> noPoll() {
+        return (sender, value, messageSender) -> {
             if(PollSystem.noCurrentPoll()){
-                if (guardCheckType == GuardCheckType.COMMAND) {
-                    Message.send("POLL_NO_POLL", commandSender);
-                }
-                return GuardResult.DENIED;
+                messageSender.send("POLL_NO_POLL");
+                return false;
             }
-            return GuardResult.ALLOWED;
+            return true;
         };
     }
 }
diff --git a/src/de/steamwar/bungeecore/commands/PollresultCommand.java b/src/de/steamwar/bungeecore/commands/PollresultCommand.java
index 4011f4c7..554efcce 100644
--- a/src/de/steamwar/bungeecore/commands/PollresultCommand.java
+++ b/src/de/steamwar/bungeecore/commands/PollresultCommand.java
@@ -22,10 +22,8 @@ package de.steamwar.bungeecore.commands;
 import de.steamwar.bungeecore.Message;
 import de.steamwar.bungeecore.listeners.PollSystem;
 import de.steamwar.bungeecore.sql.PollAnswer;
-import de.steamwar.command.GuardCheckType;
-import de.steamwar.command.GuardChecker;
-import de.steamwar.command.GuardResult;
 import de.steamwar.command.SWCommand;
+import de.steamwar.command.TypeValidator;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
 import java.util.Map;
@@ -37,7 +35,7 @@ public class PollresultCommand extends SWCommand {
     }
 
     @Register
-    public void genericCommand(@Guard ProxiedPlayer player) {
+    public void genericCommand(@Validator ProxiedPlayer player) {
         Map<String, Integer> voted = PollAnswer.getCurrentResults();
         Message.send("POLLRESULT_HEADER", player, voted.values().stream().reduce(Integer::sum).orElse(0), PollSystem.getQuestion());
         for (Map.Entry<String, Integer> e: voted.entrySet()) {
@@ -45,16 +43,14 @@ public class PollresultCommand extends SWCommand {
         }
     }
 
-    @ClassGuard(value = ProxiedPlayer.class, local = true)
-    public GuardChecker noPoll() {
-        return (commandSender, guardCheckType, previousArguments, s) -> {
-            if(PollSystem.noCurrentPoll()){
-                if (guardCheckType == GuardCheckType.COMMAND) {
-                    Message.send("POLL_NO_POLL", commandSender);
-                }
-                return GuardResult.DENIED;
+    @ClassValidator(value = ProxiedPlayer.class, local = true)
+    public TypeValidator<ProxiedPlayer> noPoll() {
+        return (sender, value, messageSender) -> {
+            if (PollSystem.noCurrentPoll()) {
+                messageSender.send("POLL_NO_POLL");
+                return false;
             }
-            return GuardResult.ALLOWED;
+            return true;
         };
     }
 }
diff --git a/src/de/steamwar/bungeecore/commands/RegelnCommand.java b/src/de/steamwar/bungeecore/commands/RegelnCommand.java
index 2721b732..63731a53 100644
--- a/src/de/steamwar/bungeecore/commands/RegelnCommand.java
+++ b/src/de/steamwar/bungeecore/commands/RegelnCommand.java
@@ -21,13 +21,12 @@ package de.steamwar.bungeecore.commands;
 
 import de.steamwar.bungeecore.Message;
 import de.steamwar.command.SWCommand;
-import net.md_5.bungee.api.CommandSender;
 import net.md_5.bungee.api.chat.ClickEvent;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
 public class RegelnCommand extends SWCommand {
     public RegelnCommand() {
-        super("regeln");
+        super("regeln", null, "rules");
     }
 
     @Register
diff --git a/src/de/steamwar/bungeecore/commands/ServerTeamchatCommand.java b/src/de/steamwar/bungeecore/commands/ServerTeamchatCommand.java
index ea4ce9f2..e22c68fd 100644
--- a/src/de/steamwar/bungeecore/commands/ServerTeamchatCommand.java
+++ b/src/de/steamwar/bungeecore/commands/ServerTeamchatCommand.java
@@ -31,13 +31,7 @@ public class ServerTeamchatCommand extends SWCommand {
     }
 
     @Register(description = "STC_USAGE")
-    public void genericCommand(CommandSender commandSender, String... message) {
-        ChatSender sender = ChatSender.of(commandSender);
-        if(message.length == 0) {
-            sender.system("STC_USAGE");
-            return;
-        }
-
-        ChatListener.sendChat(sender, ChatSender.serverteamReceivers(), "CHAT_SERVERTEAM", null, String.join(" ", message));
+    public void genericCommand(CommandSender commandSender, @ErrorMessage(value = "STC_USAGE", allowEAs = false) String... message) {
+        ChatListener.sendChat(ChatSender.of(commandSender), ChatSender.serverteamReceivers(), "CHAT_SERVERTEAM", null, String.join(" ", message));
     }
 }
diff --git a/src/de/steamwar/bungeecore/commands/StatCommand.java b/src/de/steamwar/bungeecore/commands/StatCommand.java
index 753f2537..ffae1687 100644
--- a/src/de/steamwar/bungeecore/commands/StatCommand.java
+++ b/src/de/steamwar/bungeecore/commands/StatCommand.java
@@ -52,6 +52,6 @@ public class StatCommand extends SWCommand {
             throw new SecurityException(e.getMessage(), e);
         }
 
-        Node.forEach(node -> Message.send("STAT_SERVER", sender, node.getName(), node.getLoad(), serverCount.getOrDefault(node.getName(), 0)));
+        Node.forEach(node -> Message.send("STAT_SERVER", sender, node.getName(), node.belowLoadLimit(), serverCount.getOrDefault(node.getName(), 0)));
     }
 }
diff --git a/src/de/steamwar/bungeecore/commands/TpCommand.java b/src/de/steamwar/bungeecore/commands/TpCommand.java
index a31cd783..1ac1a224 100644
--- a/src/de/steamwar/bungeecore/commands/TpCommand.java
+++ b/src/de/steamwar/bungeecore/commands/TpCommand.java
@@ -102,6 +102,8 @@ public class TpCommand extends BasicCommand {
                 sender.system("JOIN_PLAYER_BLOCK");
             }
 
+        } else if(subserver instanceof Builderserver && !player.hasPermission("bungeecore.server.team")) {
+            sender.system("JOIN_PLAYER_BLOCK");
         } else if (serverPerm != null && !player.hasPermission(serverPerm)) {
             sender.system("JOIN_PLAYER_BLOCK");
         } else if (serverPerm == null && !player.getGroups().contains("team")) {
diff --git a/src/de/steamwar/bungeecore/commands/TutorialCommand.java b/src/de/steamwar/bungeecore/commands/TutorialCommand.java
index e5e3134d..30cc2961 100644
--- a/src/de/steamwar/bungeecore/commands/TutorialCommand.java
+++ b/src/de/steamwar/bungeecore/commands/TutorialCommand.java
@@ -26,9 +26,8 @@ import de.steamwar.bungeecore.inventory.SWListInv;
 import de.steamwar.bungeecore.inventory.SWStreamInv;
 import de.steamwar.bungeecore.sql.SteamwarUser;
 import de.steamwar.bungeecore.sql.Tutorial;
-import de.steamwar.command.GuardChecker;
-import de.steamwar.command.GuardResult;
 import de.steamwar.command.SWCommand;
+import de.steamwar.command.TypeValidator;
 import net.md_5.bungee.api.ProxyServer;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
@@ -78,22 +77,14 @@ public class TutorialCommand extends SWCommand {
     }
 
     @Register("unreleased")
-    public void unreleased(@Guard("unreleased") ProxiedPlayer player) {
+    public void unreleased(@Validator("unreleased") ProxiedPlayer player) {
         openInventory(player, false, false);
     }
 
-    @Guard("unreleased")
-    public GuardChecker unreleasedChecker() {
-        return (commandSender, guardCheckType, previousArguments, s) -> {
-            if (commandSender instanceof ProxiedPlayer) {
-                if (SteamwarUser.get(((ProxiedPlayer) commandSender).getUniqueId()).getUserGroup().isTeamGroup()) {
-                    return GuardResult.ALLOWED;
-                } else {
-                    return GuardResult.DENIED_WITH_HELP;
-                }
-            } else {
-                return GuardResult.ALLOWED;
-            }
+    @Validator("unreleased")
+    public TypeValidator<ProxiedPlayer> unreleasedChecker() {
+        return (sender, value, messageSender) -> {
+            return (SteamwarUser.get((value).getUniqueId()).getUserGroup().isTeamGroup());
         };
     }
 
@@ -165,8 +156,8 @@ public class TutorialCommand extends SWCommand {
             File tutorialWorld = tutorial.world();
 
             if (tutorialWorld.exists())
-                SubserverSystem.deleteFolder(Node.local, tutorialWorld.getPath());
-            ServerStarter.copyWorld(Node.local, tempWorld.getPath(), tutorialWorld.getPath());
+                SubserverSystem.deleteFolder(BungeeCore.local, tutorialWorld.getPath());
+            ServerStarter.copyWorld(BungeeCore.local, tempWorld.getPath(), tutorialWorld.getPath());
             Message.send("TUTORIAL_CREATED", player);
         }, 1, TimeUnit.SECONDS);
     }
diff --git a/src/de/steamwar/bungeecore/commands/TypeMappers.java b/src/de/steamwar/bungeecore/commands/TypeMappers.java
new file mode 100644
index 00000000..94b27e4a
--- /dev/null
+++ b/src/de/steamwar/bungeecore/commands/TypeMappers.java
@@ -0,0 +1,98 @@
+/*
+ * This file is a part of the SteamWar software.
+ *
+ * Copyright (C) 2020  SteamWar.de-Serverteam
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <https://www.gnu.org/licenses/>.
+ */
+
+package de.steamwar.bungeecore.commands;
+
+import de.steamwar.bungeecore.ArenaMode;
+import de.steamwar.bungeecore.listeners.mods.ModLoaderBlocker;
+import de.steamwar.bungeecore.sql.Punishment;
+import de.steamwar.command.SWCommandUtils;
+import de.steamwar.command.TypeMapper;
+import de.steamwar.command.TypeValidator;
+import de.steamwar.messages.ChatSender;
+import lombok.experimental.UtilityClass;
+import net.md_5.bungee.api.CommandSender;
+import net.md_5.bungee.api.connection.ProxiedPlayer;
+
+import java.util.ArrayList;
+import java.util.Collection;
+import java.util.List;
+
+@UtilityClass
+public class TypeMappers {
+
+    public static void init() {
+        SWCommandUtils.addValidator("arenaPlayer", arenaPlayer());
+        SWCommandUtils.addMapper("nonHistoricArenaMode", arenaModeTypeMapper(false));
+        SWCommandUtils.addMapper("historicArenaMode", arenaModeTypeMapper(true));
+        SWCommandUtils.addMapper("arenaMap", arenaMapTypeMapper());
+    }
+
+    private static TypeValidator<ProxiedPlayer> arenaPlayer() {
+        return (sender, value, messageSender) -> {
+            ChatSender player = ChatSender.of(value);
+            if (player.user().isPunishedWithMessage(player, Punishment.PunishmentType.NoFightServer)) {
+                return false;
+            }
+
+            if (ModLoaderBlocker.isFabric(value)) {
+                messageSender.send("MODLOADER_DENIED");
+                return false;
+            }
+            return true;
+        };
+    }
+
+    private static TypeMapper<ArenaMode> arenaModeTypeMapper(boolean historic) {
+        return new TypeMapper<ArenaMode>() {
+            @Override
+            public ArenaMode map(CommandSender commandSender, String[] previousArguments, String s) {
+                return ArenaMode.getByChat(s);
+            }
+
+            @Override
+            public Collection<String> tabCompletes(CommandSender sender, String[] previousArguments, String s) {
+                return ArenaMode.getAllChatNames(historic);
+            }
+        };
+    }
+
+    private static TypeMapper<String> arenaMapTypeMapper() {
+        return new TypeMapper<String>() {
+            @Override
+            public String map(CommandSender commandSender, String[] previousArguments, String s) {
+                if (previousArguments.length == 0) return null;
+                if (s.equalsIgnoreCase("random")) return "random";
+                ArenaMode arenaMode = ArenaMode.getByChat(previousArguments[previousArguments.length - 1]);
+                if (arenaMode.getMaps().contains(s)) return s;
+                return null;
+            }
+
+            @Override
+            public Collection<String> tabCompletes(CommandSender sender, String[] previousArguments, String s) {
+                if (previousArguments.length == 0) return null;
+                ArenaMode arenaMode = ArenaMode.getByChat(previousArguments[previousArguments.length - 1]);
+                if (arenaMode == null) return null;
+                List<String> stringList = new ArrayList<>(arenaMode.getMaps());
+                stringList.add("random");
+                return stringList;
+            }
+        };
+    }
+}
diff --git a/src/de/steamwar/bungeecore/commands/WebregisterCommand.java b/src/de/steamwar/bungeecore/commands/WebpasswordCommand.java
similarity index 55%
rename from src/de/steamwar/bungeecore/commands/WebregisterCommand.java
rename to src/de/steamwar/bungeecore/commands/WebpasswordCommand.java
index 6197f0ff..2e45c274 100644
--- a/src/de/steamwar/bungeecore/commands/WebregisterCommand.java
+++ b/src/de/steamwar/bungeecore/commands/WebpasswordCommand.java
@@ -19,58 +19,45 @@
 
 package de.steamwar.bungeecore.commands;
 
-import de.steamwar.bungeecore.Message;
-import de.steamwar.bungeecore.sql.SWException;
 import de.steamwar.command.SWCommand;
+import de.steamwar.messages.ChatSender;
 import net.md_5.bungee.api.connection.ProxiedPlayer;
 
 import java.io.BufferedReader;
 import java.io.IOException;
 import java.io.InputStreamReader;
 
-public class WebregisterCommand extends SWCommand {
+public class WebpasswordCommand extends SWCommand {
 
-    public WebregisterCommand() {
-        super("webregister", null, "web", "webpw");
+    public WebpasswordCommand() {
+        super("webpassword", null, "webpw", "web");
     }
 
+
     @Register(description = "WEB_USAGE")
-    public void genericCommand(ProxiedPlayer player, String email) {
-        ProcessBuilder pb = new ProcessBuilder("php", "/var/www/register.php", player.getName(), email);
+    public void genericCommand(ProxiedPlayer player, String password) {
+        if(password.length() < 8) {
+            ChatSender.of(player).system("WEB_PASSWORD_LENGTH");
+            return;
+        }
+
+        ProcessBuilder pb = new ProcessBuilder("php", "/var/www/register.php", player.getName(), password);
         pb.redirectErrorStream(true);
         try {
             Process regProcess = pb.start();
             BufferedReader reader = new BufferedReader(new InputStreamReader(regProcess.getInputStream()));
             String errorLine;
-            boolean error = false;
-            while((errorLine = reader.readLine()) != null){
-                switch(errorLine){
-                    case "username_exists":
-                        Message.send("WEB_ALREADY", player);
-                        break;
-                    case "email_exists":
-                        Message.send("WEB_ALREADY_EMAIL", player);
-                        // SWException.log("Bungee", "Duplicate E-Mail", player.getName() + " " + args[0]);
-                        break;
-                    case "invalid_email":
-                        Message.send("WEB_NOT_EMAIL", player);
-                        break;
-                    case "email_updated":
-                        Message.send("WEB_EMAIL_REFRESH", player);
-                        break;
-                    default:
-                        Message.send("WEB_INTERNAL_ERROR", player);
-                        SWException.log("Bungee", "Unknown Wordpress User Creation Error", errorLine);
+            if((errorLine = reader.readLine()) != null) {
+                if ("updated".equals(errorLine)) {
+                    ChatSender.of(player).system("WEB_UPDATED");
+                    return;
+                } else {
+                    throw new SecurityException("Could not create webaccount " + errorLine);
                 }
-                error = true;
             }
 
-            if(error)
-                return;
-
-            Message.send("WEB_EMAIL_SEND", player);
+            ChatSender.of(player).system("WEB_CREATED");
         } catch (IOException e) {
-            Message.send("WEB_INTERNAL_ERROR", player);
             throw new SecurityException("Could not create webaccount", e);
         }
     }
diff --git a/src/de/steamwar/bungeecore/commands/WhoisCommand.java b/src/de/steamwar/bungeecore/commands/WhoisCommand.java
index 83caa0f6..9e25ad25 100644
--- a/src/de/steamwar/bungeecore/commands/WhoisCommand.java
+++ b/src/de/steamwar/bungeecore/commands/WhoisCommand.java
@@ -44,7 +44,7 @@ public class WhoisCommand extends SWCommand {
     }
 
     @Register(description = "WHOIS_USAGE")
-    public void genericCommand(ProxiedPlayer player, @Mapper("player") String target, @OptionalValue("") @StaticValue({"-all", "-a", ""}) String displayAll) {
+    public void genericCommand(ProxiedPlayer player, @Mapper("player") String target, @OptionalValue("") @StaticValue(value = {"", "-all", "-a"}, allowISE = true) boolean all) {
         SteamwarUser user = SteamwarUser.get(target);
         if (user == null) {
             try {
@@ -64,11 +64,9 @@ public class WhoisCommand extends SWCommand {
 
         if (user == null) {
             Message.send("UNKNOWN_PLAYER", player);
-            return;
+        } else {
+            sendUserinfo(player, user, all);
         }
-
-        boolean all = displayAll.contains("-");
-        sendUserinfo(player, user, all);
     }
 
     @Mapper(value = "player", local = true)
diff --git a/src/de/steamwar/bungeecore/listeners/ChatListener.java b/src/de/steamwar/bungeecore/listeners/ChatListener.java
index df006f97..827fe3eb 100644
--- a/src/de/steamwar/bungeecore/listeners/ChatListener.java
+++ b/src/de/steamwar/bungeecore/listeners/ChatListener.java
@@ -56,31 +56,43 @@ public class ChatListener extends BasicListener {
         ProxiedPlayer player = (ProxiedPlayer) e.getSender();
         String message = e.getMessage();
 
+        e.setCancelled(true);
+
         if (message.contains("jndi:ldap")) {
-            e.setCancelled(true);
             SteamwarUser.get(player).punishPerma(Punishment.PunishmentType.Ban, "Versuchte Exploit-Ausnutzung", 0);
             return;
         }
 
-        message = sanitize7(message);
+        if (isCommand(player, message))
+            return;
 
-        if (message.startsWith("/")) {
-            if(filteredCommand((CommandSender) e.getSender(), message))
-                e.setCancelled(true);
+        Subserver subserver = Subserver.getSubserver(player);
+        if(subserver != null && subserver.getType() == Servertype.ARENA && subserver.getServer() == player.getServer().getInfo()) {
+            localChat(player, message);
+        } else if (message.startsWith("+")) {
+            localChat(player, message.substring(1));
         } else {
-            e.setCancelled(true);
-
-            Subserver subserver = Subserver.getSubserver(player);
-            if(subserver != null && subserver.getType() == Servertype.ARENA && subserver.getServer() == player.getServer().getInfo()) {
-                localChat(player, message);
-            } else if (message.startsWith("+")) {
-                localChat(player, message.substring(1));
-            } else {
-                sendChat(ChatSender.of(player), ChatSender.globalReceivers(), "CHAT_GLOBAL", null, message);
-            }
+            sendChat(ChatSender.of(player), ChatSender.globalReceivers(), "CHAT_GLOBAL", null, message);
         }
     }
 
+    private static boolean isCommand(ProxiedPlayer player, String message) {
+        String command = message.substring(1);
+        boolean isCommand = message.startsWith("/") || (message.startsWith("7") && command.split(" ", 2)[0].matches("[7/]?[A-Za-z]+"));
+        if(isCommand && !ProxyServer.getInstance().getPluginManager().dispatchCommand(player, command)) {
+            if(command.startsWith("7"))
+                command = "/" + command.substring(1);
+            message = "/" + command;
+
+            if(filteredCommand(player, message))
+                return true;
+
+            Chat19.chat(player, message);
+        }
+
+        return isCommand;
+    }
+
     public static void sendChat(ChatSender sender, Stream<ChatSender> receivers, String format, ChatSender msgReceiver, String message) {
         SteamwarUser user = sender.user();
         final String coloredMessage = (user.getUserGroup() != UserGroup.Member || coloredTeams.contains(user.getTeam())) ? ChatColor.translateAlternateColorCodes('&', message) : message;
@@ -114,8 +126,6 @@ public class ChatListener extends BasicListener {
             return;
         }
 
-        message = sanitize7(message);
-
         if(ChatListener.filteredCommand(player, message))
             return;
 
@@ -167,17 +177,6 @@ public class ChatListener extends BasicListener {
                 group.getChatColorCode()));
     }
 
-    private static String sanitize7(String message) {
-        String begin = message.split(" ", 2)[0];
-        if(begin.startsWith("7") && begin.substring(1).matches("[A-Za-z]+")){
-            message = "/" + message.substring(1);
-        }else if((begin.startsWith("77") || begin.startsWith("7/") || begin.startsWith("/7")) && begin.substring(2).matches("[A-Za-z]+")){
-            message = "//" + message.substring(2);
-        }
-
-        return message;
-    }
-
     private static boolean filteredCommand(CommandSender sender, String message) {
         String command = message.split(" ", 2)[0];
         if(command.startsWith("/") && command.contains(":")) {
diff --git a/src/de/steamwar/bungeecore/listeners/ConnectionListener.java b/src/de/steamwar/bungeecore/listeners/ConnectionListener.java
index 95f6a89c..44bba9fe 100644
--- a/src/de/steamwar/bungeecore/listeners/ConnectionListener.java
+++ b/src/de/steamwar/bungeecore/listeners/ConnectionListener.java
@@ -105,6 +105,9 @@ public class ConnectionListener extends BasicListener {
     @EventHandler
     public void onServerKickEvent(ServerKickEvent ev)
     {
+        if(!ev.getPlayer().isConnected())
+            return;
+
         ServerInfo kickedFrom;
 
         if (ev.getPlayer().getServer() != null){
diff --git a/src/de/steamwar/bungeecore/listeners/mods/Fabric.java b/src/de/steamwar/bungeecore/listeners/mods/Fabric.java
index b2b949f7..c244de2c 100644
--- a/src/de/steamwar/bungeecore/listeners/mods/Fabric.java
+++ b/src/de/steamwar/bungeecore/listeners/mods/Fabric.java
@@ -41,7 +41,6 @@ import java.nio.charset.UnsupportedCharsetException;
 import java.util.*;
 import java.util.concurrent.TimeUnit;
 import java.util.logging.Level;
-import java.util.stream.Collectors;
 
 public class Fabric extends BasicListener {
 
@@ -124,12 +123,14 @@ public class Fabric extends BasicListener {
             mods.add(Mod.get(mod.getAsString(), Mod.Platform.FABRIC));
         }
 
+        /*
         boolean isSorted = isSortedAlphabetically(mods);
 
         if(!isSorted) {
             banPlayer(user, player, "Mods are not sorted alphabetically: " + mods.stream().map(Mod::getModName).collect(Collectors.joining(", ")));
             return;
         }
+        */
 
         if(!neededModsContained(mods)) {
             banPlayer(user, player, "Needed mods are not contained");
diff --git a/src/de/steamwar/bungeecore/network/NetworkReceiver.java b/src/de/steamwar/bungeecore/network/NetworkReceiver.java
index d3de8c86..f01bf446 100644
--- a/src/de/steamwar/bungeecore/network/NetworkReceiver.java
+++ b/src/de/steamwar/bungeecore/network/NetworkReceiver.java
@@ -22,6 +22,7 @@ package de.steamwar.bungeecore.network;
 import de.steamwar.bungeecore.BungeeCore;
 import de.steamwar.bungeecore.commands.TeamCommand;
 import de.steamwar.bungeecore.listeners.BasicListener;
+import de.steamwar.bungeecore.sql.SWException;
 import de.steamwar.network.packets.NetworkPacket;
 import net.md_5.bungee.api.ProxyServer;
 import net.md_5.bungee.api.connection.Server;
@@ -31,8 +32,8 @@ import net.md_5.bungee.event.EventPriority;
 
 import java.net.InetSocketAddress;
 import java.util.Arrays;
+import java.util.Base64;
 import java.util.List;
-import java.util.logging.Level;
 
 public class NetworkReceiver extends BasicListener {
 
@@ -41,7 +42,7 @@ public class NetworkReceiver extends BasicListener {
     @EventHandler(priority = EventPriority.HIGHEST)
     public void onPluginMessage(PluginMessageEvent event) {
         if (blockedTags.contains(event.getTag()) && !TeamCommand.isLocalhost(((InetSocketAddress) event.getSender().getSocketAddress()).getAddress())) {
-            BungeeCore.log(Level.SEVERE, ((InetSocketAddress) event.getSender().getSocketAddress()).getHostString() + " tried to send a plugin message with tag " + event.getTag());
+            SWException.log("Bungee", ((InetSocketAddress) event.getSender().getSocketAddress()).getHostString() + " tried to send a plugin message with tag " + event.getTag(), Base64.getEncoder().encodeToString(event.getData()));
             event.setCancelled(true);
             return;
         }
diff --git a/src/de/steamwar/bungeecore/sql/SteamwarUser.java b/src/de/steamwar/bungeecore/sql/SteamwarUser.java
index 96c92d54..a5cb6058 100644
--- a/src/de/steamwar/bungeecore/sql/SteamwarUser.java
+++ b/src/de/steamwar/bungeecore/sql/SteamwarUser.java
@@ -22,7 +22,7 @@ package de.steamwar.bungeecore.sql;
 import com.google.gson.JsonParser;
 import de.steamwar.bungeecore.BungeeCore;
 import de.steamwar.bungeecore.Message;
-import de.steamwar.bungeecore.commands.WebregisterCommand;
+import de.steamwar.bungeecore.commands.WebpasswordCommand;
 import de.steamwar.bungeecore.listeners.ConnectionListener;
 import de.steamwar.bungeecore.network.NetworkSender;
 import de.steamwar.messages.ChatSender;
@@ -121,7 +121,7 @@ public class SteamwarUser {
             String userName = connection.getName();
             if (!user.userName.equals(userName)) {
                 updateName.update(userName, user.id);
-                WebregisterCommand.changeUsername(user.userName, userName);
+                WebpasswordCommand.changeUsername(user.userName, userName);
                 user.userName = userName;
             }
         } else {
diff --git a/src/de/steamwar/bungeecore/sql/Tutorial.java b/src/de/steamwar/bungeecore/sql/Tutorial.java
index 75916f2e..7c82f066 100644
--- a/src/de/steamwar/bungeecore/sql/Tutorial.java
+++ b/src/de/steamwar/bungeecore/sql/Tutorial.java
@@ -19,7 +19,7 @@
 
 package de.steamwar.bungeecore.sql;
 
-import de.steamwar.bungeecore.Node;
+import de.steamwar.bungeecore.BungeeCore;
 import de.steamwar.bungeecore.ServerStarter;
 import de.steamwar.bungeecore.SubserverSystem;
 
@@ -124,7 +124,7 @@ public class Tutorial {
 
     public void delete() {
         delete.update(id);
-        SubserverSystem.deleteFolder(Node.local, world().getPath());
+        SubserverSystem.deleteFolder(BungeeCore.local, world().getPath());
     }
 
     public File world() {
diff --git a/src/de/steamwar/bungeecore/tablist/Tablist.java b/src/de/steamwar/bungeecore/tablist/Tablist.java
index b9acc96e..ad400cb7 100644
--- a/src/de/steamwar/bungeecore/tablist/Tablist.java
+++ b/src/de/steamwar/bungeecore/tablist/Tablist.java
@@ -62,7 +62,7 @@ public class Tablist extends MessageToMessageDecoder<PacketWrapper> {
         this.player = player;
         this.viewer = ChatSender.of(player);
         this.directTabItems = Storage.directTabItems.computeIfAbsent(player, p -> new HashMap<>());
-        onServerSwitch();
+        injection();
     }
 
     public void update(TablistPart global, int seconds) {
@@ -145,12 +145,17 @@ public class Tablist extends MessageToMessageDecoder<PacketWrapper> {
     }
 
     public void onServerSwitch() {
-        connection = (ServerConnection) player.getServer();
+        injection();
+
         synchronized (directTabItems) {
             sendNpcPacket(npcs.stream().map(npc -> directTabItems.get(npc).getUsername()).collect(Collectors.toList()), true);
             directTabItems.clear();
             npcs.clear();
         }
+    }
+
+    private void injection() {
+        connection = (ServerConnection) player.getServer();
 
         if(connection != null) {
             ChannelPipeline pipeline = connection.getCh().getHandle().pipeline();
diff --git a/src/de/steamwar/bungeecore/tablist/TablistManager.java b/src/de/steamwar/bungeecore/tablist/TablistManager.java
index 0f02f559..b6e78754 100644
--- a/src/de/steamwar/bungeecore/tablist/TablistManager.java
+++ b/src/de/steamwar/bungeecore/tablist/TablistManager.java
@@ -51,7 +51,9 @@ public class TablistManager extends BasicListener {
 
     public TablistManager() {
         ProxyServer.getInstance().getScheduler().schedule(BungeeCore.get(), this::updateTablist, 1, 1, TimeUnit.SECONDS);
-        ProxyServer.getInstance().getPlayers().forEach(player -> tablists.put(player, new Tablist(player)));
+        synchronized (tablists) {
+            ProxyServer.getInstance().getPlayers().forEach(player -> tablists.put(player, new Tablist(player)));
+        }
     }
 
     @EventHandler
diff --git a/src/de/steamwar/command/GuardChecker.java b/src/de/steamwar/command/GuardChecker.java
deleted file mode 100644
index 06c91101..00000000
--- a/src/de/steamwar/command/GuardChecker.java
+++ /dev/null
@@ -1,30 +0,0 @@
-/*
- * This file is a part of the SteamWar software.
- *
- * Copyright (C) 2020  SteamWar.de-Serverteam
- *
- * This program is free software: you can redistribute it and/or modify
- * it under the terms of the GNU Affero General Public License as published by
- * the Free Software Foundation, either version 3 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU Affero General Public License for more details.
- *
- * You should have received a copy of the GNU Affero General Public License
- * along with this program.  If not, see <https://www.gnu.org/licenses/>.
- */
-
-package de.steamwar.command;
-
-import net.md_5.bungee.api.CommandSender;
-
-@FunctionalInterface
-public interface GuardChecker extends AbstractGuardChecker<CommandSender> {
-    /**
-     * While guarding the first parameter of the command the parameter s of this method is {@code null}
-     */
-    GuardResult guard(CommandSender commandSender, GuardCheckType guardCheckType, String[] previousArguments, String s);
-}
diff --git a/src/de/steamwar/command/SWCommand.java b/src/de/steamwar/command/SWCommand.java
index f8c36473..3938c61f 100644
--- a/src/de/steamwar/command/SWCommand.java
+++ b/src/de/steamwar/command/SWCommand.java
@@ -149,7 +149,7 @@ public class SWCommand extends AbstractSWCommand<CommandSender> {
         }
         if (args.length == 0 || atomicInteger.get() == commandList.size()) {
             commandList.forEach(subCommand -> {
-                if (subCommand.guardChecker == null || subCommand.guardChecker.guard(p, GuardCheckType.TAB_COMPLETE, new String[0], null) == GuardResult.ALLOWED) {
+                if (subCommand.validator == null || subCommand.validator.validate(p, p, (s, args1) -> {})) {
                     send(chatSender, subCommand);
                 }
             });
diff --git a/src/de/steamwar/command/TypeUtils.java b/src/de/steamwar/command/TypeUtils.java
index df779d93..833cd4b3 100644
--- a/src/de/steamwar/command/TypeUtils.java
+++ b/src/de/steamwar/command/TypeUtils.java
@@ -19,6 +19,7 @@
 
 package de.steamwar.command;
 
+import de.steamwar.bungeecore.commands.TypeMappers;
 import de.steamwar.bungeecore.sql.SteamwarUser;
 import lombok.experimental.UtilityClass;
 import net.md_5.bungee.BungeeCord;
@@ -32,5 +33,7 @@ public class TypeUtils {
     static void init() {
         SWCommandUtils.addMapper(ProxiedPlayer.class, SWCommandUtils.createMapper(BungeeCord.getInstance()::getPlayer, (s) -> BungeeCord.getInstance().getPlayers().stream().map(ProxiedPlayer::getName).collect(Collectors.toList())));
         SWCommandUtils.addMapper(SteamwarUser.class, SWCommandUtils.createMapper(SteamwarUser::get, s -> BungeeCord.getInstance().getPlayers().stream().map(ProxiedPlayer::getName).collect(Collectors.toList())));
+
+        TypeMappers.init();
     }
 }
diff --git a/src/de/steamwar/messages/BungeeCore.properties b/src/de/steamwar/messages/BungeeCore.properties
index 1c0839d7..7169c940 100644
--- a/src/de/steamwar/messages/BungeeCore.properties
+++ b/src/de/steamwar/messages/BungeeCore.properties
@@ -18,6 +18,8 @@ DEV_UNKNOWN_SERVER=§cPlease specify a dev server.
 
 DISABLED=§cCurrently disabled.
 
+SERVER_START_OVERLOAD=§cServer start cancelled due to overload. Please try again later.
+
 #ModLoader blocker
 MODLOADER_INSTALLED=§7You play with §e{0} §7client. Therefore you can't join arenas.
 MODLOADER_INSTALLED_FABRIC=§7You play with §e{0} §7client. You can join arenas only with the FabricModSender https://steamwar.de/downloads installed.
@@ -116,7 +118,7 @@ MOD_YELLOW_PLUR=§7Deactivate the mods\n§e{0}\n§7to continue playing on §eSte
 
 #Various commands
 ALERT=§f{0}
-STAT_SERVER=§7Server §e{0}§8: §7Load §e{1} §7Server count §e{2}
+STAT_SERVER=§7Server §e{0}§8: §7Below limit §e{1} §7Server count §e{2}
 
 #Ban&Mute-Command
 PUNISHMENT_USAGE=§8/§7{0} §8[§eplayer§8] [§edd§8.§emm§8.§eyyyy §7or §edd§8.§emm§8.§eyyyy§8_§ehh§8:§emm §7or §eperma§8] [§ereason§8]
@@ -507,13 +509,10 @@ UNIGNORE_NOT_IGNORED=§cYou are not ignoring this player.
 UNIGNORE_UNIGNORED=§7You ignored §e{0}§8.
 
 #WebregisterCommand
-WEB_USAGE=§8/§7webregister §8[§eE-Mail§8]
-WEB_ALREADY=§cYou already have a webaccount.
-WEB_ALREADY_EMAIL=§cYou already used this E-Mail address on another account...
-WEB_NOT_EMAIL=§c[E-Mail], not [free text]!
-WEB_EMAIL_REFRESH=§aYour E-Mail was updated.
-WEB_INTERNAL_ERROR=§cAn internal error occurred, please contact a developer.
-WEB_EMAIL_SEND=§aAn E-Mail to reset your password has been sent.
+WEB_USAGE=§8/§7webpassword §8[§epassword§8]
+WEB_UPDATED=§7Your password was updated.
+WEB_CREATED=§7Your webaccount was created.
+WEB_PASSWORD_LENGTH=§cYour password is shorter than 8 characters.
 
 #ChatListener
 CHAT_LIXFEL_ACTION_BAR=§4§lTechnical problems?
@@ -641,4 +640,8 @@ FIGHT_MERGE_OFFLINE=§7The proposed arena has been terminated in the meantime, a
 FIGHT_MERGE_INFO=§e{0}§8: §e{1}
 
 #Locale Locking
-LOCK_LOCALE_CHANGED=§aLanguage saved
\ No newline at end of file
+LOCK_LOCALE_CHANGED=§aLanguage saved
+
+#Builder Cloud
+BUILDERCLOUD_USAGE=§8/§7buildercloud §8[§eversion§8] §8[§emap§8] §8<§7generator§8>
+BUILDERCLOUD_VERSION=§cUnknown version.
\ No newline at end of file
diff --git a/src/de/steamwar/messages/BungeeCore_de.properties b/src/de/steamwar/messages/BungeeCore_de.properties
index 1a1725af..068c7df4 100644
--- a/src/de/steamwar/messages/BungeeCore_de.properties
+++ b/src/de/steamwar/messages/BungeeCore_de.properties
@@ -14,6 +14,8 @@ DEV_UNKNOWN_SERVER=§cBitte gib einen DevServer an.
 
 DISABLED=§cDerzeit deaktiviert.
 
+SERVER_START_OVERLOAD=§cDer Serverstart wurde aufgrund von Überlastung abgebrochen. Versuche es später erneut.
+
 #ModLoader blocker
 MODLOADER_INSTALLED=§7Du spielst mit §e{0} §7Client. Daher kannst du keinen Arenen beitreten.
 MODLOADER_INSTALLED_FABRIC=§7Du spielst mit §e{0} §7Client. Nur mit dem FabricModSender https://steamwar.de/downloads kannst du Arenen beitreten.
@@ -101,7 +103,7 @@ MOD_YELLOW_SING=§7Deaktiviere den Mod §e{0}§7, um weiter auf §eSteam§8War 
 MOD_YELLOW_PLUR=§7Deaktiviere die Mods\n§e{0}\n§7um weiter auf §eSteam§8War §7spielen zu können.
 
 #Various commands
-STAT_SERVER=§7Server §e{0}§8: §7Load §e{1} §7Serveranzahl §e{2}
+STAT_SERVER=§7Server §e{0}§8: §7Startfähig §e{1} §7Serveranzahl §e{2}
 
 #Ban&Mute-Command
 PUNISHMENT_USAGE=§8/§7{0} §8[§eSpieler§8] [§edd§8.§emm§8.§eyyyy §7oder §edd§8.§emm§8.§eyyyy§8_§ehh§8:§emm §7oder §eperma§8] [§eGrund§8]
@@ -486,13 +488,10 @@ UNIGNORE_NOT_IGNORED=§cDu ignorierst diesen Spieler nicht.
 UNIGNORE_UNIGNORED=§7Du empfängst nun wieder Nachrichten von §e{0}§8.
 
 #WebregisterCommand
-WEB_USAGE=§8/§7webregister §8[§eE-Mail§8]
-WEB_ALREADY=§cDu hast bereits einen Webaccount.
-WEB_ALREADY_EMAIL=§cDie E-Mail hast du bereits für einen anderen Account verwendet...
-WEB_NOT_EMAIL=§c[E-Mail], nicht [Freitext]!
-WEB_EMAIL_REFRESH=§aDeine E-Mail-Adresse wurde aktualisiert.
-WEB_INTERNAL_ERROR=§cEin interner Fehler ist aufgetreten, bitte wende dich an einen Developer.
-WEB_EMAIL_SEND=§aEine E-Mail zum Setzen des Passworts wurde gesendet.
+WEB_USAGE=§8/§7webpassword §8[§ePasswort§8]
+WEB_UPDATED=§7Dein Passwort wurde aktualisiert.
+WEB_CREATED=§7Dein Webaccount wurde erstellt.
+WEB_PASSWORD_LENGTH=§cDein Passwort ist kürzer als 8 Zeichen.
 
 #ChatListener
 CHAT_LIXFEL_ACTION_BAR=§4§lTechnische Probleme?
@@ -619,4 +618,8 @@ FIGHT_MERGE_INFO_LORE_1=§8Von: §e{0}
 FIGHT_MERGE_OFFLINE=§7Die vorgeschlagene Arena wurde in der Zwischenzeit beendet, es wird eine neue Arena gestartet.
 
 #Locale Locking
-LOCK_LOCALE_CHANGED=§aSprache gespeichert
\ No newline at end of file
+LOCK_LOCALE_CHANGED=§aSprache gespeichert
+
+#Builder Cloud
+BUILDERCLOUD_USAGE=§8/§7buildercloud §8[§eVersion§8] §8[§eWelt§8] §8<§7Generator§8>
+BUILDERCLOUD_VERSION=§cUnbekannte Version.
\ No newline at end of file
diff --git a/src/de/steamwar/messages/ChatSender.java b/src/de/steamwar/messages/ChatSender.java
index 6879505f..5b79204f 100644
--- a/src/de/steamwar/messages/ChatSender.java
+++ b/src/de/steamwar/messages/ChatSender.java
@@ -107,6 +107,14 @@ public interface ChatSender {
         return new TextComponent(parse(prefixed, message));
     }
 
+    default String parseToPlain(String format, Object... params) {
+        return parseToPlain(new Message(format, params));
+    }
+
+    default String parseToPlain(Message message) {
+        return parseToComponent(false, message).toPlainText();
+    }
+
     default String parseToLegacy(String format, Object... params) {
         return parseToLegacy(new Message(format, params));
     }