diff --git a/SpigotCore_Main/src/de/steamwar/command/Argument.java b/SpigotCore_Main/src/de/steamwar/command/Argument.java
index 236fcca..e231b8c 100644
--- a/SpigotCore_Main/src/de/steamwar/command/Argument.java
+++ b/SpigotCore_Main/src/de/steamwar/command/Argument.java
@@ -38,72 +38,18 @@ public class Argument<T> {
 
     private ArgumentType<T> argumentType;
     private Predicate<T> constraint;
+    private String[] tabCompletes;
     private Function<T, ?> valueMapper;
 
-    public Argument(ArgumentType<T> argumentType, Predicate<T> constraint) {
-        this(argumentType, constraint, o -> o);
+    public Argument(ArgumentType<T> argumentType, Predicate<T> constraint, String... tabCompletes) {
+        this(argumentType, constraint, o -> o, tabCompletes);
     }
 
-    public <M> Argument(ArgumentType<T> argumentType, Predicate<T> constraint, Function<T, M> valueMapper) {
+    public <M> Argument(ArgumentType<T> argumentType, Predicate<T> constraint, Function<T, M> valueMapper, String... tabCompletes) {
         this.argumentType = argumentType;
         this.constraint = constraint;
         this.valueMapper = valueMapper;
-    }
-
-    public static Argument<String> of(String argument) {
-        return new Argument<>(ArgumentType.STRING, string -> string.equals(argument));
-    }
-
-    public static Argument<String> ofIgnoreCase(String argument) {
-        return new Argument<>(ArgumentType.STRING, string -> string.equalsIgnoreCase(argument));
-    }
-
-    public static Argument<Integer> above(int minValue) {
-        return between(minValue, Integer.MAX_VALUE);
-    }
-
-    public static Argument<Integer> below(int maxValue) {
-        return between(Integer.MIN_VALUE, maxValue);
-    }
-
-    public static Argument<Integer> between(int minValue, int maxValue) {
-        return new Argument<>(ArgumentType.INT, i -> i >= minValue && i <= maxValue);
-    }
-
-    public static Argument<Long> above(long minValue) {
-        return between(minValue, Long.MAX_VALUE);
-    }
-
-    public static Argument<Long> below(long maxValue) {
-        return between(Long.MIN_VALUE, maxValue);
-    }
-
-    public static Argument<Long> between(long minValue, long maxValue) {
-        return new Argument<>(ArgumentType.LONG, l -> l >= minValue && l <= maxValue);
-    }
-
-    public static Argument<Float> above(float minValue) {
-        return between(minValue, Float.MAX_VALUE);
-    }
-
-    public static Argument<Float> below(float maxValue) {
-        return between(Float.MIN_VALUE, maxValue);
-    }
-
-    public static Argument<Float> between(float minValue, float maxValue) {
-        return new Argument<>(ArgumentType.FLOAT, f -> f >= minValue && f <= maxValue);
-    }
-
-    public static Argument<Double> above(double minValue) {
-        return between(minValue, Double.MAX_VALUE);
-    }
-
-    public static Argument<Double> below(double maxValue) {
-        return between(Double.MIN_VALUE, maxValue);
-    }
-
-    public static Argument<Double> between(double minValue, double maxValue) {
-        return new Argument<>(ArgumentType.DOUBLE, d -> d >= minValue && d <= maxValue);
+        this.tabCompletes = tabCompletes;
     }
 
     public Optional<?> valueSupplier(String s) {
diff --git a/SpigotCore_Main/src/de/steamwar/command/ArgumentMap.java b/SpigotCore_Main/src/de/steamwar/command/ArgumentMap.java
index f4266a6..5ced8bc 100644
--- a/SpigotCore_Main/src/de/steamwar/command/ArgumentMap.java
+++ b/SpigotCore_Main/src/de/steamwar/command/ArgumentMap.java
@@ -35,10 +35,26 @@ public class ArgumentMap {
         return objects.length;
     }
 
+    public Class<?> getType(int index) {
+        return objects[index].getClass();
+    }
+
     public <T> T get(int index) {
         return (T)objects[index];
     }
 
+    public <T> T get(int index, T t) {
+        return get(index);
+    }
+
+    public <T> T get(int index, Class<T> clazz) {
+        return get(index);
+    }
+
+    public Class<?>[] typeArray() {
+        return Arrays.stream(objects).map(Object::getClass).toArray(Class<?>[]::new);
+    }
+
     @Override
     public String toString() {
         StringBuilder st = new StringBuilder();
diff --git a/SpigotCore_Main/src/de/steamwar/command/ArgumentUtils.java b/SpigotCore_Main/src/de/steamwar/command/ArgumentUtils.java
new file mode 100644
index 0000000..1ebfb78
--- /dev/null
+++ b/SpigotCore_Main/src/de/steamwar/command/ArgumentUtils.java
@@ -0,0 +1,131 @@
+/*
+ *
+ *     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 java.util.Arrays;
+import java.util.function.Predicate;
+
+public class ArgumentUtils {
+
+    public static Argument<String> of(String argument) {
+        return new Argument<>(ArgumentType.STRING, string -> string.equals(argument), argument);
+    }
+
+    public static Argument<String> of(String... arguments) {
+        return new Argument<>(ArgumentType.STRING, string -> {
+            for (String arg : arguments) {
+                if (string.equals(arg)) return true;
+            }
+            return false;
+        }, arguments);
+    }
+
+    public static Argument<String> ofIgnoreCase(String argument) {
+        return new Argument<>(ArgumentType.STRING, string -> string.equalsIgnoreCase(argument), argument);
+    }
+
+    public static Argument<String> ofIgnoreCase(String... arguments) {
+        return new Argument<>(ArgumentType.STRING, string -> {
+            for (String arg : arguments) {
+                if (string.equalsIgnoreCase(arg)) return true;
+            }
+            return false;
+        }, arguments);
+    }
+
+    public static Argument<Integer> above(int minValue, int... tabValues) {
+        return between(minValue, Integer.MAX_VALUE, tabValues);
+    }
+
+    public static Argument<Integer> below(int maxValue, int... tabValues) {
+        return between(Integer.MIN_VALUE, maxValue, tabValues);
+    }
+
+    public static Argument<Integer> between(int minValue, int maxValue, int... tabValues) {
+        Predicate<Integer> predicate = i -> i >= minValue && i <= maxValue;
+        for (int tabValue : tabValues) {
+            if (!predicate.test(tabValue)) throw new IllegalArgumentException();
+        }
+        return new Argument<>(ArgumentType.INT, predicate, Arrays.stream(tabValues).mapToObj(i -> i + "").toArray(String[]::new));
+    }
+
+    public static Argument<Long> above(long minValue, long... tabValues) {
+        return between(minValue, Long.MAX_VALUE, tabValues);
+    }
+
+    public static Argument<Long> below(long maxValue, long... tabValues) {
+        return between(Long.MIN_VALUE, maxValue, tabValues);
+    }
+
+    public static Argument<Long> between(long minValue, long maxValue, long... tabValues) {
+        Predicate<Long> predicate = l -> l >= minValue && l <= maxValue;
+        for (long tabValue : tabValues) {
+            if (!predicate.test(tabValue)) throw new IllegalArgumentException();
+        }
+        return new Argument<>(ArgumentType.LONG, predicate, Arrays.stream(tabValues).mapToObj(l -> l + "").toArray(String[]::new));
+    }
+
+    public static Argument<Float> above(float minValue, float... tabValues) {
+        return between(minValue, Float.MAX_VALUE, tabValues);
+    }
+
+    public static Argument<Float> below(float maxValue, float... tabValues) {
+        return between(Float.MIN_VALUE, maxValue, tabValues);
+    }
+
+    public static Argument<Float> between(float minValue, float maxValue, float... tabValues) {
+        Predicate<Float> predicate = f -> f >= minValue && f <= maxValue;
+        for (float tabValue : tabValues) {
+            if (!predicate.test(tabValue)) throw new IllegalArgumentException();
+        }
+        String[] strings = new String[tabValues.length];
+        for (int i = 0; i < tabValues.length; i++) {
+            strings[i] = tabValues[i] + "";
+        }
+        return new Argument<>(ArgumentType.FLOAT, predicate, strings);
+    }
+
+    public static Argument<Double> above(double minValue, double... tabValues) {
+        return between(minValue, Double.MAX_VALUE, tabValues);
+    }
+
+    public static Argument<Double> below(double maxValue, double... tabValues) {
+        return between(Double.MIN_VALUE, maxValue, tabValues);
+    }
+
+    public static Argument<Double> between(double minValue, double maxValue, double... tabValues) {
+        Predicate<Double> predicate = d -> d >= minValue && d <= maxValue;
+        for (double tabValue : tabValues) {
+            if (!predicate.test(tabValue)) throw new IllegalArgumentException();
+        }
+        return new Argument<>(ArgumentType.DOUBLE, predicate, Arrays.stream(tabValues).mapToObj(d -> d + "").toArray(String[]::new));
+    }
+
+    private static String[] toStringArray(Object[] objects) {
+        String[] strings = new String[objects.length];
+        for (int i = 0; i < objects.length; i++) {
+            strings[i] = objects[i].toString();
+        }
+        return strings;
+    }
+
+}
diff --git a/SpigotCore_Main/src/de/steamwar/command/SWCommand.java b/SpigotCore_Main/src/de/steamwar/command/SWCommand.java
index 13bd061..2a727ec 100644
--- a/SpigotCore_Main/src/de/steamwar/command/SWCommand.java
+++ b/SpigotCore_Main/src/de/steamwar/command/SWCommand.java
@@ -47,13 +47,13 @@ public class SWCommand {
     }
 
     public Optional<Boolean> execute(Player player, String[] args) {
-        if (!checkValidity(args)) {
+        if (args.length != arguments.length) {
             return Optional.empty();
         }
         Object[] objects = new Object[args.length];
         for (int i = 0; i < args.length; i++) {
             Optional<?> optional = arguments[i].valueSupplier(args[i]);
-            if (!optional.isPresent()) throw new IllegalStateException();
+            if (!optional.isPresent()) return Optional.empty();
             objects[i] = optional.get();
         }
         return Optional.of(executor.execute(player, new ArgumentMap(objects)));