replace groovy code with ability in card script

release/Magarena/scripts/Wren_s_Run_Packmaster.groovy

@@ -1,29 +0,0 @@
-[
-    new MagicPermanentActivation(
-        new MagicActivationHints(MagicTiming.Token,true),
-        "Token"
-    ) {
-
-        @Override
-        public Iterable<MagicEvent> getCostEvent(final MagicPermanent source) {
-            return [new MagicPayManaCostEvent(source,"{2}{G}")];
-        }
-
-        @Override
-        public MagicEvent getPermanentEvent(final MagicPermanent source,final MagicPayedCost payedCost) {
-            return new MagicEvent(
-                source,
-                this,
-                "PN puts a 2/2 green Wolf creature token onto the battlefield."
-            );
-        }
-
-        @Override
-        public void executeEvent(final MagicGame game, final MagicEvent event) {
-            game.doAction(new MagicPlayTokenAction(
-                event.getPlayer(),
-                TokenCardDefinitions.get("2/2 green Wolf creature token")
-            ));
-        }
-    }
-]

release/Magarena/scripts/Wren_s_Run_Packmaster.txt

@@ -8,6 +8,6 @@ type=Creature
 subtype=Elf,Warrior
 cost={3}{G}
 pt=5/5
-ability=champion Elf;lord each wolf you control has deathtouch
+ability=champion Elf;lord each wolf you control has deathtouch;
+        pay {2}{G}: PN puts a 2/2 green Wolf creature token onto the battlefield.
 timing=main
-requires_groovy_code