Implemented Cavalier of Night

Mage.Sets/src/mage/cards/c/CavalierOfNight.java

@@ -0,0 +1,133 @@
+package mage.cards.c;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.DelayedTriggeredAbility;
+import mage.abilities.common.DiesTriggeredAbility;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.costs.common.SacrificeTargetCost;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.DestroyTargetEffect;
+import mage.abilities.effects.common.DoIfCostPaid;
+import mage.abilities.effects.common.ReturnFromGraveyardToBattlefieldTargetEffect;
+import mage.abilities.effects.common.SendOptionUsedEventEffect;
+import mage.abilities.keyword.LifelinkAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.FilterCard;
+import mage.filter.common.FilterControlledCreaturePermanent;
+import mage.filter.common.FilterControlledPermanent;
+import mage.filter.common.FilterCreatureCard;
+import mage.filter.predicate.mageobject.ConvertedManaCostPredicate;
+import mage.filter.predicate.permanent.AnotherPredicate;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.target.common.TargetCardInYourGraveyard;
+import mage.target.common.TargetControlledPermanent;
+import mage.target.common.TargetOpponentsCreaturePermanent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class CavalierOfNight extends CardImpl {
+
+    private static final FilterControlledPermanent filter
+            = new FilterControlledCreaturePermanent("another creature");
+    private static final FilterCard filter2
+            = new FilterCreatureCard("creature card with converted mana cost 3 or less from your graveyard");
+
+    static {
+        filter.add(AnotherPredicate.instance);
+        filter2.add(new ConvertedManaCostPredicate(ComparisonType.FEWER_THAN, 4));
+    }
+
+    public CavalierOfNight(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{2}{B}{B}{B}");
+
+        this.subtype.add(SubType.ELEMENTAL);
+        this.subtype.add(SubType.KNIGHT);
+        this.power = new MageInt(4);
+        this.toughness = new MageInt(5);
+
+        // Lifelink
+        this.addAbility(LifelinkAbility.getInstance());
+
+        // When Cavalier of Night enters the battlefield, you may sacrifice another creature. When you do, destroy target creature an opponent controls.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new DoIfCostPaid(
+                new CavalierOfNightCreateReflexiveTriggerEffect(),
+                new SacrificeTargetCost(new TargetControlledPermanent(filter))
+        )));
+
+        // When Cavalier of Night dies, return target creature card with converted mana cost 3 or less from your graveyard to the battlefield.
+        Ability ability = new DiesTriggeredAbility(new ReturnFromGraveyardToBattlefieldTargetEffect());
+        ability.addTarget(new TargetCardInYourGraveyard(filter2));
+        this.addAbility(ability);
+    }
+
+    private CavalierOfNight(final CavalierOfNight card) {
+        super(card);
+    }
+
+    @Override
+    public CavalierOfNight copy() {
+        return new CavalierOfNight(this);
+    }
+}
+
+class CavalierOfNightCreateReflexiveTriggerEffect extends OneShotEffect {
+
+    CavalierOfNightCreateReflexiveTriggerEffect() {
+        super(Outcome.Benefit);
+    }
+
+    private CavalierOfNightCreateReflexiveTriggerEffect(final CavalierOfNightCreateReflexiveTriggerEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public CavalierOfNightCreateReflexiveTriggerEffect copy() {
+        return new CavalierOfNightCreateReflexiveTriggerEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        game.addDelayedTriggeredAbility(new CavalierOfNightReflexiveTriggeredAbility(), source);
+        return new SendOptionUsedEventEffect().apply(game, source);
+    }
+}
+
+class CavalierOfNightReflexiveTriggeredAbility extends DelayedTriggeredAbility {
+
+    CavalierOfNightReflexiveTriggeredAbility() {
+        super(new DestroyTargetEffect(), Duration.OneUse, true);
+        this.addTarget(new TargetOpponentsCreaturePermanent());
+    }
+
+    private CavalierOfNightReflexiveTriggeredAbility(final CavalierOfNightReflexiveTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public CavalierOfNightReflexiveTriggeredAbility copy() {
+        return new CavalierOfNightReflexiveTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.OPTION_USED;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        return event.getPlayerId().equals(this.getControllerId())
+                && event.getSourceId().equals(this.getSourceId());
+    }
+
+    @Override
+    public String getRule() {
+        return "Destroy target creature an opponent controls";
+    }
+}

Mage.Sets/src/mage/sets/CoreSet2020.java

@@ -61,6 +61,7 @@ public final class CoreSet2020 extends ExpansionSet {
         cards.add(new SetCardInfo("Bone Splinters", 92, Rarity.COMMON, mage.cards.b.BoneSplinters.class));
         cards.add(new SetCardInfo("Boneclad Necromancer", 93, Rarity.COMMON, mage.cards.b.BonecladNecromancer.class));
         cards.add(new SetCardInfo("Captivating Gyre", 51, Rarity.UNCOMMON, mage.cards.c.CaptivatingGyre.class));
+        cards.add(new SetCardInfo("Cavalier of Night", 94, Rarity.MYTHIC, mage.cards.c.CavalierOfNight.class));
         cards.add(new SetCardInfo("Cerulean Drake", 53, Rarity.UNCOMMON, mage.cards.c.CeruleanDrake.class));
         cards.add(new SetCardInfo("Chandra's Embercat", 129, Rarity.COMMON, mage.cards.c.ChandrasEmbercat.class));
         cards.add(new SetCardInfo("Chandra's Spitfire", 132, Rarity.UNCOMMON, mage.cards.c.ChandrasSpitfire.class));