[CLB] Implemented Balor

Mage/src/main/java/mage/target/common/TargetOpponent.java

@@ -1,29 +1,25 @@
-
 package mage.target.common;
 
 import mage.filter.FilterOpponent;
 import mage.target.TargetPlayer;
 
 /**
- *
  * @author BetaSteward_at_googlemail.com
  * @author North
  */
 public class TargetOpponent extends TargetPlayer {
 
+    private static final FilterOpponent filter = new FilterOpponent();
+
     public TargetOpponent() {
         this(false);
     }
-    
+
     public TargetOpponent(boolean notTarget) {
-        this(new FilterOpponent(), notTarget);        
-    }
-    
-    public TargetOpponent(FilterOpponent filter, boolean notTarget) {
         super(1, 1, notTarget, filter);
     }
 
-    public TargetOpponent(final TargetOpponent target) {
+    private TargetOpponent(final TargetOpponent target) {
         super(target);
     }