Add script for Gisela, Blade of Goldnight

release/Magarena/scripts/Gisela__Blade_of_Goldnight.groovy

@@ -0,0 +1,17 @@
+[
+    new MagicIfDamageWouldBeDealtTrigger(MagicTrigger.INCREASE_DAMAGE) {
+        @Override
+        public MagicEvent executeTrigger(final MagicGame game,final MagicPermanent permanent,final MagicDamage damage) {
+            final int amount = damage.getAmount();
+            if (permanent.isEnemy(damage.getTarget())) {
+                // Generates no event or action.
+                damage.setAmount(amount * 2);
+            }else{
+                int half = (int) Math.ceil((double)amount / 2);
+                // Prevention effect.
+                damage.prevent(half);
+            }
+            return MagicEvent.NONE;
+        }
+    }
+]

release/Magarena/scripts/Gisela__Blade_of_Goldnight.txt

@@ -0,0 +1,12 @@
+ name=Gisela, Blade of Goldnight
+url=http://magiccards.info/avr/en/209.html
+image=http://magiccards.info/scans/en/avr/209.jpg
+value=4.230
+rarity=M
+type=Legendary,Creature
+subtype=Angel
+cost={4}{R}{W}{W}
+ability=flying;first strike
+pt=5/5
+timing=main
+requires_groovy_code