Implemented Ashiok's Erasure

Mage.Sets/src/mage/cards/a/AshioksErasure.java

@@ -0,0 +1,147 @@
+package mage.cards.a;
+
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.LeavesBattlefieldTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.effects.ContinuousRuleModifyingEffectImpl;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.ReturnFromExileForSourceEffect;
+import mage.abilities.keyword.FlashAbility;
+import mage.cards.Card;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.Zone;
+import mage.game.ExileZone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.game.stack.Spell;
+import mage.players.Player;
+import mage.target.TargetSpell;
+import mage.util.CardUtil;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class AshioksErasure extends CardImpl {
+
+    public AshioksErasure(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{U}{U}");
+
+        // Flash
+        this.addAbility(FlashAbility.getInstance());
+
+        // When Ashiok's Erasure enters the battlefield, exile target spell.
+        Ability ability = new EntersBattlefieldTriggeredAbility(new AshioksErasureExileEffect());
+        ability.addTarget(new TargetSpell());
+        this.addAbility(ability);
+
+        // Your opponents can't cast spells with the same name as the exiled card.
+        this.addAbility(new SimpleStaticAbility(new AshioksErasureReplacementEffect()));
+
+        // When Ashiok's Erasure leaves the battlefield, return the exiled card to its owner's hand.
+        this.addAbility(new LeavesBattlefieldTriggeredAbility(new ReturnFromExileForSourceEffect(
+                Zone.HAND, false, true
+        ).setText("return the exiled card to its owner's hand"), false));
+    }
+
+    private AshioksErasure(final AshioksErasure card) {
+        super(card);
+    }
+
+    @Override
+    public AshioksErasure copy() {
+        return new AshioksErasure(this);
+    }
+}
+
+class AshioksErasureExileEffect extends OneShotEffect {
+
+    AshioksErasureExileEffect() {
+        super(Outcome.Benefit);
+        this.staticText = "exile target spell";
+    }
+
+    private AshioksErasureExileEffect(final AshioksErasureExileEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public AshioksErasureExileEffect copy() {
+        return new AshioksErasureExileEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player controller = game.getPlayer(source.getControllerId());
+        MageObject sourceObject = source.getSourceObject(game);
+        Spell spell = game.getStack().getSpell(getTargetPointer().getFirst(game, source));
+        if (controller == null || sourceObject == null || spell == null) {
+            return false;
+        }
+        UUID exileId = CardUtil.getExileZoneId(game, source.getSourceId(), source.getSourceObjectZoneChangeCounter());
+        return controller.moveCardsToExile(spell, source, game, true, exileId, sourceObject.getIdName());
+    }
+}
+
+class AshioksErasureReplacementEffect extends ContinuousRuleModifyingEffectImpl {
+
+    AshioksErasureReplacementEffect() {
+        super(Duration.WhileOnBattlefield, Outcome.Detriment);
+        staticText = "Your opponents can't cast spells with the same name as the exiled card";
+    }
+
+    private AshioksErasureReplacementEffect(final AshioksErasureReplacementEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public boolean checksEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.CAST_SPELL_LATE;
+    }
+
+    @Override
+    public boolean applies(GameEvent event, Ability source, Game game) {
+        Permanent sourcePermanent = game.getPermanent(source.getSourceId());
+        if (event.getPlayerId().equals(source.getControllerId())) {
+            return false;
+        }
+        Card card = game.getCard(event.getSourceId());
+        if (sourcePermanent == null || card == null) {
+            return false;
+        }
+        UUID exileZone = CardUtil.getExileZoneId(game, source.getSourceId(), source.getSourceObjectZoneChangeCounter());
+        if (exileZone == null) {
+            return false;
+        }
+        ExileZone exile = game.getExile().getExileZone(exileZone);
+        if (exile == null) {
+            // try without ZoneChangeCounter - that is useful for tokens
+            exileZone = CardUtil.getCardExileZoneId(game, source);
+            if (exileZone != null) {
+                exile = game.getExile().getExileZone(exileZone);
+            }
+        }
+        if (exile == null) {
+            return false;
+        }
+        return exile.getCards(game).stream().anyMatch(card.getName()::equals);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return false;
+    }
+
+    @Override
+    public AshioksErasureReplacementEffect copy() {
+        return new AshioksErasureReplacementEffect(this);
+    }
+}

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

@@ -29,6 +29,7 @@ public final class TherosBeyondDeath extends ExpansionSet {
 
         cards.add(new SetCardInfo("Allure of the Unknown", 207, Rarity.RARE, mage.cards.a.AllureOfTheUnknown.class));
         cards.add(new SetCardInfo("Aphemia the Cacophony", 84, Rarity.RARE, mage.cards.a.AphemiaTheCacophony.class));
+        cards.add(new SetCardInfo("Ashiok's Erasure", 43, Rarity.RARE, mage.cards.a.AshioksErasure.class));
         cards.add(new SetCardInfo("Ashiok, Nightmare Muse", 208, Rarity.MYTHIC, mage.cards.a.AshiokNightmareMuse.class));
         cards.add(new SetCardInfo("Ashiok, Sculptor of Fears", 274, Rarity.MYTHIC, mage.cards.a.AshiokSculptorOfFears.class));
         cards.add(new SetCardInfo("Athreos, Shroud-Veiled", 269, Rarity.MYTHIC, mage.cards.a.AthreosShroudVeiled.class));