Implemented Gift of Doom

Mage.Sets/src/mage/cards/g/GiftOfDoom.java

@@ -0,0 +1,108 @@
+package mage.cards.g;
+
+import mage.abilities.Ability;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.costs.common.SacrificeTargetCost;
+import mage.abilities.effects.AsTurnedFaceUpEffect;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.AttachEffect;
+import mage.abilities.effects.common.continuous.GainAbilityAttachedEffect;
+import mage.abilities.keyword.DeathtouchAbility;
+import mage.abilities.keyword.EnchantAbility;
+import mage.abilities.keyword.IndestructibleAbility;
+import mage.abilities.keyword.MorphAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.AttachmentType;
+import mage.constants.CardType;
+import mage.constants.Outcome;
+import mage.constants.SubType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+import mage.target.common.TargetControlledPermanent;
+import mage.target.common.TargetCreaturePermanent;
+
+import java.util.UUID;
+
+import static mage.constants.Outcome.Benefit;
+
+/**
+ * @author TheElk801
+ */
+public final class GiftOfDoom extends CardImpl {
+
+    public GiftOfDoom(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{4}{B}");
+
+        this.subtype.add(SubType.AURA);
+
+        // Enchant creature
+        TargetPermanent auraTarget = new TargetCreaturePermanent();
+        this.getSpellAbility().addTarget(auraTarget);
+        this.getSpellAbility().addEffect(new AttachEffect(Outcome.BoostCreature));
+        Ability ability = new EnchantAbility(auraTarget.getTargetName());
+        this.addAbility(ability);
+
+        // Enchanted creature has deathtouch and indestructible.
+        ability = new SimpleStaticAbility(new GainAbilityAttachedEffect(
+                DeathtouchAbility.getInstance(), AttachmentType.AURA
+        ));
+        ability.addEffect(new GainAbilityAttachedEffect(
+                IndestructibleAbility.getInstance(), AttachmentType.AURA
+        ));
+        this.addAbility(ability);
+
+        // Morph—Sacrifice another creature.
+        this.addAbility(new MorphAbility(this, new SacrificeTargetCost(
+                new TargetControlledPermanent(StaticFilters.FILTER_CONTROLLED_ANOTHER_CREATURE)
+        )));
+
+        // As Gift of Doom is turned face up, you may attach it to a creature.
+        this.addAbility(new SimpleStaticAbility(new AsTurnedFaceUpEffect(new GiftOfDoomEffect(), true)));
+    }
+
+    private GiftOfDoom(final GiftOfDoom card) {
+        super(card);
+    }
+
+    @Override
+    public GiftOfDoom copy() {
+        return new GiftOfDoom(this);
+    }
+}
+
+class GiftOfDoomEffect extends OneShotEffect {
+
+    GiftOfDoomEffect() {
+        super(Benefit);
+        staticText = "attach it to a creature";
+    }
+
+    private GiftOfDoomEffect(final GiftOfDoomEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public GiftOfDoomEffect copy() {
+        return new GiftOfDoomEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        Permanent permanent = game.getPermanent(source.getSourceId());
+        if (player == null || permanent == null) {
+            return false;
+        }
+        TargetCreaturePermanent target = new TargetCreaturePermanent(0, 1);
+        target.setNotTarget(true);
+        if (!player.choose(outcome, target, source.getSourceId(), game)) {
+            return false;
+        }
+        permanent.attachTo(target.getFirstTarget(), game);
+        return true;
+    }
+}

Mage.Sets/src/mage/sets/Commander2019Edition.java

@@ -86,6 +86,7 @@ public final class Commander2019Edition extends ExpansionSet {
         cards.add(new SetCardInfo("Ghired's Belligerence", 25, Rarity.RARE, mage.cards.g.GhiredsBelligerence.class));
         cards.add(new SetCardInfo("Ghired, Conclave Exile", 42, Rarity.MYTHIC, mage.cards.g.GhiredConclaveExile.class));
         cards.add(new SetCardInfo("Ghostly Prison", 64, Rarity.UNCOMMON, mage.cards.g.GhostlyPrison.class));
+        cards.add(new SetCardInfo("Gift of Doom", 17, Rarity.RARE, mage.cards.g.GiftOfDoom.class));
         cards.add(new SetCardInfo("Golgari Guildgate", 247, Rarity.COMMON, mage.cards.g.GolgariGuildgate.class));
         cards.add(new SetCardInfo("Golgari Rot Farm", 248, Rarity.UNCOMMON, mage.cards.g.GolgariRotFarm.class));
         cards.add(new SetCardInfo("Great Oak Guardian", 170, Rarity.UNCOMMON, mage.cards.g.GreatOakGuardian.class));