added unleash to card script

src/magic/model/MagicAbility.java

@@ -68,6 +68,7 @@ import magic.model.trigger.MagicAtEndOfTurnTrigger;
 import magic.model.trigger.MagicAtUpkeepTrigger;
 import magic.model.trigger.MagicWhenOtherComesIntoPlayTrigger;
 import magic.model.trigger.MagicExtortTrigger;
+import magic.model.trigger.MagicUnleashTrigger;
 
 import java.util.EnumSet;
 import java.util.Set;
@@ -726,6 +727,13 @@ public enum MagicAbility {
             card.add(new MagicReinforceActivation(n, manaCost));
         }
     },
+    Unleash("unleash", 20) {
+        public void addAbilityImpl(final MagicCardDefinition card, final String arg) {
+            assert arg.isEmpty() : this + " does not accept arg = " + arg;
+            card.add(MagicUnleashTrigger.create());
+            card.add(MagicStatic.Unleash);
+        }
+    },
     None("",0);
     
     public static final Set<MagicAbility> CORE = EnumSet.range(AttacksEachTurnIfAble, Flanking);

src/magic/model/mstatic/MagicStatic.java

@@ -8,6 +8,7 @@ import magic.model.MagicPlayer;
 import magic.model.MagicPowerToughness;
 import magic.model.MagicSubType;
 import magic.model.MagicAbility;
+import magic.model.MagicCounterType;
 import magic.model.target.MagicTargetFilter;
 
 import java.util.Set;
@@ -172,4 +173,18 @@ public abstract class MagicStatic extends MagicDummyModifier implements MagicCha
             return source.getEnchantedCreature() == target;
         }
     };
+    
+    public static MagicStatic Unleash = new MagicStatic(MagicLayer.Ability) {
+        @Override
+        public void modAbilityFlags(
+            final MagicPermanent source,
+            final MagicPermanent permanent,
+            final Set<MagicAbility> flags) {
+            flags.add(MagicAbility.CannotBlock);
+        }
+        @Override
+        public boolean condition(final MagicGame game,final MagicPermanent source,final MagicPermanent target) {
+            return source.getCounters(MagicCounterType.PlusOne) > 0;
+        }
+    };
 }

src/magic/model/trigger/MagicUnleashTrigger.java

@@ -0,0 +1,51 @@
+package magic.model.trigger;
+
+import magic.model.MagicCounterType;
+import magic.model.MagicGame;
+import magic.model.MagicPermanent;
+import magic.model.MagicPlayer;
+import magic.model.action.MagicChangeCountersAction;
+import magic.model.event.MagicEvent;
+import magic.model.choice.MagicMayChoice;
+
+public class MagicUnleashTrigger extends MagicWhenComesIntoPlayTrigger {
+
+    private static final MagicUnleashTrigger INSTANCE = new MagicUnleashTrigger();
+
+    private MagicUnleashTrigger() {}
+
+    public static MagicUnleashTrigger create() {
+        return INSTANCE;
+    }
+
+    @Override
+    public MagicEvent executeTrigger(
+            final MagicGame game,
+            final MagicPermanent permanent,
+            final MagicPlayer player) {
+        return new MagicEvent(
+            permanent,
+            new MagicMayChoice(),
+            this,
+            "SN enters the battlefield with a +1/+1 counter on it."
+        );
+    }
+    @Override
+    public void executeEvent(
+            final MagicGame game,
+            final MagicEvent event,
+            final Object[] choiceResults) {
+        if (MagicMayChoice.isYesChoice(choiceResults[0])) {
+            game.doAction(new MagicChangeCountersAction(
+                event.getPermanent(),
+                MagicCounterType.PlusOne,
+                1,
+                false
+            ));
+        }
+    }
+    @Override
+    public boolean usesStack() {
+        return false;
+    }
+}