diff --git a/release/Magarena/scripts/Diminish.groovy b/release/Magarena/scripts/Diminish.groovy
new file mode 100644
index 0000000000..6cdd9b8d6c
--- /dev/null
+++ b/release/Magarena/scripts/Diminish.groovy
@@ -0,0 +1,29 @@
+def PT = new MagicStatic(MagicLayer.SetPT, MagicStatic.UntilEOT) {
+    @Override
+    public void modPowerToughness(final MagicPermanent source, final MagicPermanent permanent, final MagicPowerToughness pt) {
+        pt.set(1,1);
+    }
+}
+
+[
+    new MagicSpellCardEvent() {
+        @Override
+        public MagicEvent getEvent(final MagicCardOnStack cardOnStack,final MagicPayedCost payedCost) {
+            return new MagicEvent(
+                cardOnStack,
+                MagicTargetChoice.TARGET_CREATURE,
+                new MagicDestroyTargetPicker(true),
+                this,
+                "Target creature\$ becomes 1/1 until end of turn."
+            );
+        }
+        @Override
+        public void executeEvent(final MagicGame game, final MagicEvent event) {
+            event.processTargetPermanent(game,new MagicPermanentAction() {
+                public void doAction(final MagicPermanent creature) {
+                    game.doAction(new MagicBecomesCreatureAction(creature,PT));
+                }
+            });
+        }
+    }
+]
diff --git a/release/Magarena/scripts/Diminish.txt b/release/Magarena/scripts/Diminish.txt
index f2eb4eb033..1d4a35a999 100644
--- a/release/Magarena/scripts/Diminish.txt
+++ b/release/Magarena/scripts/Diminish.txt
@@ -7,4 +7,4 @@ rarity=C
 type=Instant
 cost={U}
 timing=removal
-requires_card_code
+requires_groovy_code
diff --git a/src/magic/card/Diminish.java b/src/magic/card/Diminish.java
deleted file mode 100644
index 42464f1b1b..0000000000
--- a/src/magic/card/Diminish.java
+++ /dev/null
@@ -1,47 +0,0 @@
-package magic.card;
-
-import magic.model.MagicGame;
-import magic.model.MagicPayedCost;
-import magic.model.MagicPermanent;
-import magic.model.MagicPowerToughness;
-import magic.model.action.MagicBecomesCreatureAction;
-import magic.model.action.MagicPermanentAction;
-import magic.model.choice.MagicTargetChoice;
-import magic.model.event.MagicEvent;
-import magic.model.event.MagicSpellCardEvent;
-import magic.model.mstatic.MagicLayer;
-import magic.model.mstatic.MagicStatic;
-import magic.model.stack.MagicCardOnStack;
-import magic.model.target.MagicDestroyTargetPicker;
-
-public class Diminish {
-
-    private static final MagicStatic PT = new MagicStatic(MagicLayer.SetPT, MagicStatic.UntilEOT) {
-        @Override
-        public void modPowerToughness(final MagicPermanent source, final MagicPermanent permanent, final MagicPowerToughness pt) {
-            pt.set(1,1);
-        }
-    };
-
-    public static final MagicSpellCardEvent S = new MagicSpellCardEvent() {
-        @Override
-        public MagicEvent getEvent(final MagicCardOnStack cardOnStack,final MagicPayedCost payedCost) {
-            return new MagicEvent(
-                    cardOnStack,
-                    MagicTargetChoice.TARGET_CREATURE,
-                    new MagicDestroyTargetPicker(true),
-                    this,
-                    "Target creature$ becomes 1/1 until end of turn.");
-        }
-        @Override
-        public void executeEvent(
-                final MagicGame game,
-                final MagicEvent event) {
-            event.processTargetPermanent(game,new MagicPermanentAction() {
-                public void doAction(final MagicPermanent creature) {
-                    game.doAction(new MagicBecomesCreatureAction(creature,PT));
-                }
-            });
-        }
-    };
-}