diff --git a/SpigotCore_Main/src/de/steamwar/command/ArgumentUtils.java b/SpigotCore_Main/src/de/steamwar/command/ArgumentUtils.java
index 676482f..65b57d8 100644
--- a/SpigotCore_Main/src/de/steamwar/command/ArgumentUtils.java
+++ b/SpigotCore_Main/src/de/steamwar/command/ArgumentUtils.java
@@ -35,8 +35,9 @@ public class ArgumentUtils {
         return false;
     }
 
-    public static Argument<String> of(String argument) {
-        return new Argument<>(s -> s, string -> string.equals(argument), argument);
+    private static String[] supply(String s, String[] empty, String[] notEmpty) {
+        if (s.isEmpty()) return empty;
+        return notEmpty;
     }
 
     public static Argument<String> of(String... arguments) {
@@ -44,14 +45,7 @@ public class ArgumentUtils {
     }
 
     public static Argument<String> of(String[] commands, String[] tabCompletes) {
-        return new Argument<>(s -> s, string -> contains(commands, string, String::equals), s -> {
-            if (s.isEmpty()) return tabCompletes;
-            return commands;
-        });
-    }
-
-    public static Argument<String> ofIgnoreCase(String argument) {
-        return new Argument<>(s -> s, string -> string.equalsIgnoreCase(argument), argument);
+        return new Argument<>(s -> s, string -> contains(commands, string, String::equals), s -> supply(s, tabCompletes, commands));
     }
 
     public static Argument<String> ofIgnoreCase(String... arguments) {
@@ -59,70 +53,31 @@ public class ArgumentUtils {
     }
 
     public static Argument<String> ofIgnoreCase(String[] commands, String[] tabCompletes) {
-        return new Argument<>(s -> s, string -> contains(commands, string, String::equals), s -> {
-            if (s.isEmpty()) return tabCompletes;
-            return commands;
-        });
-    }
-
-    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);
+        return new Argument<>(s -> s, string -> contains(commands, string, String::equals), s -> supply(s, tabCompletes, commands));
     }
 
     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();
-        String[] array = Arrays.stream(tabValues).mapToObj(i -> i + "").toArray(String[]::new);
+        String[] array = Arrays.stream(tabValues).boxed().filter(predicate).map(i -> i + "").toArray(String[]::new);
         return new Argument<>(Integer::parseInt, predicate, array);
     }
 
-    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();
-        String[] array = Arrays.stream(tabValues).mapToObj(l -> l + "").toArray(String[]::new);
+        String[] array = Arrays.stream(tabValues).boxed().filter(predicate).map(l -> l + "").toArray(String[]::new);
         return new Argument<>(Long::parseLong, predicate, array);
     }
 
-    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[] array = new String[tabValues.length];
-        for (int i = 0; i < tabValues.length; i++) array[i] = tabValues[i] + "";
+        for (int i = 0; i < tabValues.length; i++) if (predicate.test(tabValues[i])) array[i] = tabValues[i] + "";
         return new Argument<>(Float::parseFloat, predicate, array);
     }
 
-    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();
-        String[] array = Arrays.stream(tabValues).mapToObj(d -> d + "").toArray(String[]::new);
+        String[] array = Arrays.stream(tabValues).boxed().filter(predicate).map(d -> d + "").toArray(String[]::new);
         return new Argument<>(Double::parseDouble, predicate, array);
     }
 
diff --git a/SpigotCore_Main/src/de/steamwar/command/SWCommand.java b/SpigotCore_Main/src/de/steamwar/command/SWCommand.java
index 34159e9..948c8de 100644
--- a/SpigotCore_Main/src/de/steamwar/command/SWCommand.java
+++ b/SpigotCore_Main/src/de/steamwar/command/SWCommand.java
@@ -36,9 +36,7 @@ public class SWCommand {
     }
 
     public boolean execute(Player player, String[] args) {
-        if (args.length != arguments.length) {
-            return false;
-        }
+        if (args.length != arguments.length) return false;
         Object[] objects = new Object[args.length];
         for (int i = 0; i < args.length; i++) {
             Optional<?> optional = arguments[i].valueSupplier(args[i]);
@@ -50,12 +48,9 @@ public class SWCommand {
     }
 
     public Optional<List<String>> tabComplete(String[] args) {
-        if (args.length > arguments.length) {
-            return Optional.empty();
-        }
+        if (args.length > arguments.length) return Optional.empty();
         for (int i = 0; i < args.length - 1; i++) {
-            Optional<?> optional = arguments[i].valueSupplier(args[i]);
-            if (!optional.isPresent()) return Optional.empty();
+            if (!arguments[i].valueSupplier(args[i]).isPresent()) return Optional.empty();
         }
         int index = args.length - 1;
         return arguments[index].tabCompleteSupplier(args[index]);
diff --git a/SpigotCore_Main/src/de/steamwar/command/SWCommandBundle.java b/SpigotCore_Main/src/de/steamwar/command/SWCommandBundle.java
index 52ce3fd..1f798ca 100644
--- a/SpigotCore_Main/src/de/steamwar/command/SWCommandBundle.java
+++ b/SpigotCore_Main/src/de/steamwar/command/SWCommandBundle.java
@@ -55,9 +55,7 @@ public class SWCommandBundle {
 
     public List<String> tabComplete(String[] args) {
         List<String> strings = new ArrayList<>();
-        for (SWCommand swCommand : swCommandList) {
-            swCommand.tabComplete(args).ifPresent(strings::addAll);
-        }
+        swCommandList.forEach(swCommand -> swCommand.tabComplete(args).ifPresent(strings::addAll));
         return strings;
     }