Added card "Betray" and its abilities and effects

Mage.Sets/src/mage/cards/b/BenSolo.java

@@ -20,6 +20,9 @@ import mage.target.common.TargetPlayerOrPlaneswalker;
 import java.util.Set;
 import java.util.UUID;
 
+/**
+ * @author Merlingilb
+ */
 public class BenSolo extends CardImpl {
     public BenSolo(UUID ownerId, CardSetInfo setInfo) {
         super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{R/W}{W}");
@@ -36,7 +39,7 @@ public class BenSolo extends CardImpl {
         this.addAbility(new BenSoloTriggeredAbility());
     }
 
-    public BenSolo(CardImpl card) {
+    public BenSolo(final BenSolo card) {
         super(card);
     }
 

Mage.Sets/src/mage/cards/b/Betray.java

@@ -1,4 +1,66 @@
 package mage.cards.b;
 
-public class Betray {
+import mage.abilities.Ability;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.Card;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.common.TargetCreaturePermanent;
+
+import java.util.UUID;
+
+/**
+ * @author Merlingilb
+ */
+public class Betray extends CardImpl {
+    public Betray(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.INSTANT}, "{2}{R}");
+
+        //Target creature an opponent controls deals damage to its controller equal to that creature's power.
+        this.getSpellAbility().addEffect(new BetrayEffect());
+        this.getSpellAbility().addTarget(new TargetCreaturePermanent(1, 1,
+                StaticFilters.FILTER_OPPONENTS_PERMANENT_CREATURE, false));
+    }
+
+    public Betray(final Betray card) {
+        super(card);
+    }
+
+    @Override
+    public Card copy() {
+        return new Betray(this);
+    }
+}
+
+class BetrayEffect extends OneShotEffect {
+
+    BetrayEffect() {
+        super(Outcome.Benefit);
+        staticText = "Target creature an opponent controls deals damage to its controller equal to that creature's power.";
+    }
+
+    private BetrayEffect(final BetrayEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public BetrayEffect copy() {
+        return new BetrayEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Permanent permanent = game.getPermanent(source.getFirstTarget());
+        if (permanent == null) {
+            return false;
+        }
+        Player player = game.getPlayer(permanent.getControllerId());
+        return player.damage(permanent.getPower().getValue(), permanent.getId(), source, game) > 0;
+    }
 }