added Horned Sliver

release/Magarena/scripts/Horned_Sliver.txt

@@ -0,0 +1,12 @@
+name=Horned Sliver
+url=http://magiccards.info/tp/en/128.html
+image=http://magiccards.info/scans/en/tp/128.jpg
+value=3
+rarity=U
+type=Creature
+subtype=Sliver
+cost={2}{G}
+pt=2/2
+static=all
+timing=main
+requires_card_code

src/magic/card/Horned_Sliver.java

@@ -0,0 +1,21 @@
+package magic.card;
+
+import magic.model.MagicAbility;
+import magic.model.MagicGame;
+import magic.model.MagicPermanent;
+import magic.model.MagicPowerToughness;
+import magic.model.mstatic.MagicLayer;
+import magic.model.mstatic.MagicStatic;
+import magic.model.target.MagicTargetFilter;
+
+
+public class Horned_Sliver {
+    public static final MagicStatic S1 = new MagicStatic(
+            MagicLayer.Ability,
+            MagicTargetFilter.TARGET_SLIVER) {
+        @Override
+        public long getAbilityFlags(final MagicPermanent source,final MagicPermanent permanent,final long flags) {
+            return flags | MagicAbility.Trample.getMask();
+        }
+    };
+}