diff --git a/src/de/steamwar/bungeecore/ArenaMode.java b/src/de/steamwar/bungeecore/ArenaMode.java
index 13db3f4f..90576915 100644
--- a/src/de/steamwar/bungeecore/ArenaMode.java
+++ b/src/de/steamwar/bungeecore/ArenaMode.java
@@ -95,11 +95,13 @@ public class ArenaMode {
     private final String config;
     private final List<String> maps;
     private final boolean historic;
+    private final String internalName;
 
     private final boolean ranked;
     private final String schemType;
 
     private ArenaMode(String internalName, Configuration config){
+        this.internalName = internalName;
         this.folder = config.getString("Server.Folder");
         this.serverJar = config.getString("Server.ServerJar");
         this.config = internalName + ".yml";
@@ -172,4 +174,8 @@ public class ArenaMode {
     public String getSchemType() {
         return schemType;
     }
+
+    public String getInternalName() {
+        return internalName;
+    }
 }
diff --git a/src/de/steamwar/bungeecore/ServerStarter.java b/src/de/steamwar/bungeecore/ServerStarter.java
index e8cd6e39..5d23ae4f 100644
--- a/src/de/steamwar/bungeecore/ServerStarter.java
+++ b/src/de/steamwar/bungeecore/ServerStarter.java
@@ -51,7 +51,7 @@ public class ServerStarter {
         serverJar = mode.serverJar();
         directory = new File(SERVER_PATH, mode.getFolder());
         arguments.put("config", mode.getConfig());
-        constructor = (serverName, port, builder, shutdownCallback) -> new Arenaserver(serverName, mode.getDisplayName(), map, !mode.isRanked(), port, builder, shutdownCallback);
+        constructor = (serverName, port, builder, shutdownCallback) -> new Arenaserver(serverName, mode.getInternalName(), map, true, port, builder, shutdownCallback);
         tempWorld(SERVER_PATH + mode.getFolder() + "/arenas/" + map);
         return this;
     }
@@ -62,7 +62,7 @@ public class ServerStarter {
         worldDir = EVENT_PATH;
         worldCleanup = () -> {};
         arguments.put("fightID", String.valueOf(eventFight.getFightID()));
-        constructor = (serverName, port, builder, shutdownCallback) -> new Arenaserver(serverName, eventFight.getSpielmodus().getDisplayName(), eventFight.getMap(), false, port, builder, shutdownCallback);
+        constructor = (serverName, port, builder, shutdownCallback) -> new Arenaserver(serverName, eventFight.getSpielmodus().getInternalName(), eventFight.getMap(), false, port, builder, shutdownCallback);
 
         String serverName = Team.get(eventFight.getTeamBlue()).getTeamKuerzel() + " vs " + Team.get(eventFight.getTeamRed()).getTeamKuerzel();
         serverNameProvider = port -> serverName;
diff --git a/src/de/steamwar/bungeecore/commands/BauCommand.java b/src/de/steamwar/bungeecore/commands/BauCommand.java
index 93c48666..744d48fa 100644
--- a/src/de/steamwar/bungeecore/commands/BauCommand.java
+++ b/src/de/steamwar/bungeecore/commands/BauCommand.java
@@ -261,7 +261,7 @@ public class BauCommand extends BasicCommand {
     }
 
     private static void testarena(ProxiedPlayer p, String[] args){
-        FightCommand.createArena(p, "/bau testarena ", args, 1, false, (player, mode, map) -> ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> new ServerStarter().test(mode, map, p).start()));
+        FightCommand.createArena(p, "/bau testarena ", false, args, 1, false, (player, mode, map) -> ProxyServer.getInstance().getScheduler().runAsync(BungeeCore.get(), () -> new ServerStarter().test(mode, map, p).start()));
     }
 
     private static BauweltMember member(ProxiedPlayer p, SteamwarUser member){
diff --git a/src/de/steamwar/bungeecore/commands/ChallengeCommand.java b/src/de/steamwar/bungeecore/commands/ChallengeCommand.java
index 7f480c1b..ed80159e 100644
--- a/src/de/steamwar/bungeecore/commands/ChallengeCommand.java
+++ b/src/de/steamwar/bungeecore/commands/ChallengeCommand.java
@@ -71,7 +71,7 @@ public class ChallengeCommand extends BasicCommand {
             return;
         }
 
-        FightCommand.createArena(sender, "/challenge " + target.getName() + " ", args, 1, false, (player, mode, map) -> {
+        FightCommand.createArena(sender, "/challenge " + target.getName() + " ", true, args, 1, false, (player, mode, map) -> {
             if(challenges.containsKey(target) && challenges.get(target).contains(player)){
                 challenges.remove(target);
                 challenges.remove(player);
diff --git a/src/de/steamwar/bungeecore/commands/FightCommand.java b/src/de/steamwar/bungeecore/commands/FightCommand.java
index b71736fd..56530524 100644
--- a/src/de/steamwar/bungeecore/commands/FightCommand.java
+++ b/src/de/steamwar/bungeecore/commands/FightCommand.java
@@ -125,7 +125,7 @@ public class FightCommand extends BasicCommand {
         return false;
     }
 
-    static void createArena(CommandSender sender, String precommand, String[] args, int startArg, boolean historic, FightCallback callback){
+    static void createArena(CommandSender sender, String precommand, boolean allowMerging, String[] args, int startArg, boolean historic, FightCallback callback){
         if(!(sender instanceof ProxiedPlayer))
             return;
 
@@ -160,7 +160,7 @@ public class FightCommand extends BasicCommand {
         if(map == null)
             return;
 
-        if(precommand.equals("/bau testarena ") || precommand.startsWith("/challenge ")) {
+        if(!allowMerging) {
             callback.run(player, mode, map);
         } else if(suggestMerging(player, mode, map, callback)) {
             callback.run(player, mode, map);
@@ -169,12 +169,14 @@ public class FightCommand extends BasicCommand {
 
     public static boolean suggestMerging(ProxiedPlayer player, ArenaMode mode, String map, FightCallback declineMerge) {
         Arenaserver mergable = null;
-        for (Subserver subserver : Subserver.getServerList()) {
-            if(subserver instanceof Arenaserver) {
-                Arenaserver arenaserver = (Arenaserver) subserver;
-                if(mode.getDisplayName().equals(arenaserver.getMode()) && map.equals(arenaserver.getMap()) && arenaserver.isAllowMerge() && arenaserver.getServer().getPlayers().size() == 1) {
-                    mergable = arenaserver;
-                    break;
+        synchronized (Subserver.getServerList()) {
+            for (Subserver subserver : Subserver.getServerList()) {
+                if(subserver instanceof Arenaserver) {
+                    Arenaserver arenaserver = (Arenaserver) subserver;
+                    if(mode.getInternalName().equals(arenaserver.getMode()) && map.equals(arenaserver.getMap()) && arenaserver.isAllowMerge() && arenaserver.getServer().getPlayers().size() == 1) {
+                        mergable = arenaserver;
+                        break;
+                    }
                 }
             }
         }
@@ -186,11 +188,11 @@ public class FightCommand extends BasicCommand {
                 declineMerge.run(player, mode, map);
             });
             Arenaserver finalMergable = mergable;
-            SWItem item = new SWItem("§e" + ArenaMode.getByInternal(finalMergable.getMode()).getDisplayName() + "§7: §e" + finalMergable.getMap().toUpperCase(), 11);
+            SWItem item = new SWItem(Message.parse("FIGHT_MERGE_INFO", player, mode.getDisplayName(), finalMergable.getMap()), 11);
             item.addLore(Message.parse("FIGHT_MERGE_INFO_LORE_1", player, finalMergable.getServer().getPlayers().stream().map(ProxiedPlayer::getDisplayName).reduce((player1, player2) -> player1 + ", " + player2).orElse("Error?")));
             inventory.addItem(4, item, click -> {});
             inventory.addItem(8, new SWItem(Message.parse("FIGHT_MERGE_ACCEPT", player), 10), click -> {
-                if(BungeeCore.get().getProxy().getServerInfo(finalMergable.getServer().getName()) != null) {
+                if(Subserver.getServerList().contains(finalMergable)) {
                     finalMergable.sendPlayer(player);
                 } else {
                     Message.send("FIGHT_MERGE_OFFLINE", player);
@@ -205,7 +207,7 @@ public class FightCommand extends BasicCommand {
 
     @Override
     public void execute(CommandSender sender, String[] args) {
-        createArena(sender, "/fight ", args, 0, false, (player, mode, map) -> {
+        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());
diff --git a/src/de/steamwar/bungeecore/commands/HistoricCommand.java b/src/de/steamwar/bungeecore/commands/HistoricCommand.java
index f07a6a3e..d26730fe 100644
--- a/src/de/steamwar/bungeecore/commands/HistoricCommand.java
+++ b/src/de/steamwar/bungeecore/commands/HistoricCommand.java
@@ -32,7 +32,7 @@ public class HistoricCommand extends BasicCommand {
 
     @Override
     public void execute(CommandSender sender, String[] args) {
-        FightCommand.createArena(sender, "/historic ", args, 0, true, (player, mode, map) -> {
+        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());
diff --git a/src/de/steamwar/messages/BungeeCore.properties b/src/de/steamwar/messages/BungeeCore.properties
index 5ec4361b..9cc792b4 100644
--- a/src/de/steamwar/messages/BungeeCore.properties
+++ b/src/de/steamwar/messages/BungeeCore.properties
@@ -595,3 +595,4 @@ FIGHT_MERGE_DECLINE=Neue Arena starten
 FIGHT_MERGE_ACCEPT=Fight beitreten
 FIGHT_MERGE_INFO_LORE_1=§7Von: §e{0}
 FIGHT_MERGE_OFFLINE=Der Server dem du beitreten wolltest ist nicht mehr online
+FIGHT_MERGE_INFO=§e{0}§7: §e{1}
\ No newline at end of file