Behaviour work.

src/engine/wpakpowers/Behaviours.java

@@ -71,8 +71,7 @@ public class Behaviours {
 
     public static Object StringBehaviour(AbstractCharacter caster, Power power, Integer rank, AbstractWorldObject target,
                                          PowerAction powerAction, Effect effect, ModifierEntry modifierEntry) {
-        System.out.println("Behavior method called");
-        return null;
+        return new Pair<>(modifierEntry.arg1, modifierEntry.arg2);  // We should filter this.  No purpose.
     }
 
     public static Object SubTypeMod(AbstractCharacter caster, Power power, Integer rank, AbstractWorldObject target,