- Added the function removeAll to CardList to remove all instances of a card from it (I was shocked that we didn't have this, or am I missing something?).

- Fixed some possible bugs of assigning blockers twice in ComputerUtil_Block2.

src/main/java/forge/CardList.java

@@ -574,6 +574,17 @@ public class CardList implements Iterable<Card> {
     public void remove(Card c) {
         list.remove(c);
     }
+    
+    /**
+     * <p>removeAll.</p>
+     *
+     * @param c a {@link forge.Card} object.
+     */
+    public void removeAll(Card c) {
+        ArrayList<Card> cList = new ArrayList<Card>();
+        cList.add(c);
+        list.removeAll(cList);
+    }
 
     /**
      * <p>clear.</p>

src/main/java/forge/ComputerUtil_Block2.java

@@ -505,7 +505,7 @@ public class ComputerUtil_Block2 {
                         && CardFactoryUtil.evaluateCreature(blocker) + getDiff() < CardFactoryUtil.evaluateCreature(attacker)
                         && CombatUtil.canBlock(attacker, blocker, combat)) {
                     combat.addBlocker(attacker, blocker);
-                    getBlockersLeft().remove(blocker);
+                    getBlockersLeft().removeAll(blocker);
                 }
             }
         }
@@ -630,7 +630,7 @@ public class ComputerUtil_Block2 {
                 for (Card blocker : blockers) {
                     if (CombatUtil.canBlock(attacker, blocker, combat)) {
                         combat.addBlocker(attacker, blocker);
-                        getBlockersLeft().remove(blocker);
+                        getBlockersLeft().removeAll(blocker);
                     }
                 }
             }