Implemented The Elderspell

Mage.Sets/src/mage/cards/t/TheElderspell.java

@@ -0,0 +1,87 @@
+package mage.cards.t;
+
+import mage.abilities.Ability;
+import mage.abilities.effects.OneShotEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.counters.CounterType;
+import mage.filter.FilterPermanent;
+import mage.filter.StaticFilters;
+import mage.filter.common.FilterControlledPlaneswalkerPermanent;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class TheElderspell extends CardImpl {
+
+    public TheElderspell(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{B}{B}");
+
+        // Destroy any number of target planeswalkers. Choose a planeswalker you control. Put two loyalty counters on it for each planeswalker destroyed this way.
+        this.getSpellAbility().addEffect(new TheElderspellEffect());
+        this.getSpellAbility().addTarget(new TargetPermanent(
+                0, Integer.MAX_VALUE, StaticFilters.FILTER_PERMANENT_PLANESWALKERS, false
+        ));
+    }
+
+    private TheElderspell(final TheElderspell card) {
+        super(card);
+    }
+
+    @Override
+    public TheElderspell copy() {
+        return new TheElderspell(this);
+    }
+}
+
+class TheElderspellEffect extends OneShotEffect {
+
+    private static final FilterPermanent filter = new FilterControlledPlaneswalkerPermanent();
+
+    TheElderspellEffect() {
+        super(Outcome.Benefit);
+        staticText = "Destroy any number of target planeswalkers. Choose a planeswalker you control. " +
+                "Put two loyalty counters on it for each planeswalker destroyed this way.";
+    }
+
+    private TheElderspellEffect(final TheElderspellEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public TheElderspellEffect copy() {
+        return new TheElderspellEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        if (player == null) {
+            return false;
+        }
+        int count = 0;
+        for (UUID permId : source.getTargets().get(0).getTargets()) {
+            Permanent permanent = game.getPermanent(permId);
+            if (permanent != null && permanent.destroy(source.getSourceId(), game, false)) {
+                count++;
+            }
+        }
+        TargetPermanent targetPermanent = new TargetPermanent(filter);
+        if (!player.choose(outcome, targetPermanent, source.getSourceId(), game)) {
+            return false;
+        }
+        Permanent permanent = game.getPermanent(targetPermanent.getFirstTarget());
+        if (permanent == null) {
+            return false;
+        }
+        return permanent.addCounters(CounterType.LOYALTY.createInstance(2 * count), source, game);
+    }
+}

Mage.Sets/src/mage/sets/WarOfTheSpark.java

@@ -205,6 +205,7 @@ public final class WarOfTheSpark extends ExpansionSet {
         cards.add(new SetCardInfo("Teyo's Lightshield", 33, Rarity.COMMON, mage.cards.t.TeyosLightshield.class));
         cards.add(new SetCardInfo("Teyo, the Shieldmage", 32, Rarity.UNCOMMON, mage.cards.t.TeyoTheShieldmage.class));
         cards.add(new SetCardInfo("Tezzeret, Master of the Bridge", 275, Rarity.MYTHIC, mage.cards.t.TezzeretMasterOfTheBridge.class));
+        cards.add(new SetCardInfo("The Elderspell", 89, Rarity.RARE, mage.cards.t.TheElderspell.class));
         cards.add(new SetCardInfo("The Wanderer", 37, Rarity.UNCOMMON, mage.cards.t.TheWanderer.class));
         cards.add(new SetCardInfo("Thundering Ceratok", 179, Rarity.COMMON, mage.cards.t.ThunderingCeratok.class));
         cards.add(new SetCardInfo("Tibalt's Rager", 147, Rarity.UNCOMMON, mage.cards.t.TibaltsRager.class));

Mage/src/main/java/mage/filter/StaticFilters.java

@@ -417,6 +417,12 @@ public final class StaticFilters {
         FILTER_PERMANENT_PLANESWALKER.setLockedFilter(true);
     }
 
+    public static final FilterPlaneswalkerPermanent FILTER_PERMANENT_PLANESWALKERS = new FilterPlaneswalkerPermanent("planeswalkers");
+
+    static {
+        FILTER_PERMANENT_PLANESWALKERS.setLockedFilter(true);
+    }
+
     public static final FilterNonlandPermanent FILTER_PERMANENT_NON_LAND = new FilterNonlandPermanent();
 
     static {