replace groovy code with card script

release/Magarena/scripts/Skinrender.groovy

@@ -1,22 +0,0 @@
-[
-    new MagicWhenComesIntoPlayTrigger() {
-        @Override
-        public MagicEvent executeTrigger(final MagicGame game,final MagicPermanent permanent, final MagicPayedCost payedCost) {
-            return new MagicEvent(
-                permanent,
-                MagicTargetChoice.NEG_TARGET_CREATURE,
-                new MagicWeakenTargetPicker(3,3),
-                this,
-                "Put three -1/-1 counters on target creature\$."
-            );
-        }
-        @Override
-        public void executeEvent(final MagicGame game, final MagicEvent event) {
-            event.processTargetPermanent(game,new MagicPermanentAction() {
-                public void doAction(final MagicPermanent creature) {
-                    game.doAction(new MagicChangeCountersAction(creature,MagicCounterType.MinusOne,3,true));
-                }
-            });
-        }
-    }
-]

release/Magarena/scripts/Skinrender.txt

@@ -8,5 +8,5 @@ type=Creature
 subtype=Zombie
 cost={2}{B}{B}
 pt=3/3
-timing=fmain
+ability=enters effect Put three -1/-1 counters on target creature.
-requires_groovy_code
+timing=main