[WOC] Implement Court of Vantress

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

@@ -0,0 +1,112 @@
+package mage.cards.c;
+
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.BeginningOfUpkeepTriggeredAbility;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.BecomesMonarchSourceEffect;
+import mage.abilities.effects.common.CreateTokenCopyTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.Outcome;
+import mage.constants.TargetController;
+import mage.filter.FilterPermanent;
+import mage.filter.common.FilterArtifactOrEnchantmentPermanent;
+import mage.filter.predicate.mageobject.AnotherPredicate;
+import mage.game.Game;
+import mage.game.permanent.Permanent;
+import mage.players.Player;
+import mage.target.TargetPermanent;
+import mage.util.functions.CopyApplier;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class CourtOfVantress extends CardImpl {
+
+    private static final FilterPermanent filter
+            = new FilterArtifactOrEnchantmentPermanent("other target enchantment or artifact");
+
+    static {
+        filter.add(AnotherPredicate.instance);
+    }
+
+    public CourtOfVantress(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{U}{U}");
+
+        // When Court of Vantress enters the battlefield, you become the monarch.
+        this.addAbility(new EntersBattlefieldTriggeredAbility(new BecomesMonarchSourceEffect()));
+
+        // At the beginning of your upkeep, choose up to one other target enchantment or artifact. If you're the monarch, you may create a token that's a copy of it. If you're not the monarch, you may have Court of Vantress become a copy of it, except it has this ability.
+        this.addAbility(makeAbility());
+    }
+
+    private CourtOfVantress(final CourtOfVantress card) {
+        super(card);
+    }
+
+    @Override
+    public CourtOfVantress copy() {
+        return new CourtOfVantress(this);
+    }
+
+    static Ability makeAbility() {
+        Ability ability = new BeginningOfUpkeepTriggeredAbility(
+                new CourtOfVantressEffect(), TargetController.YOU, false
+        );
+        ability.addTarget(new TargetPermanent(0, 1, filter));
+        return ability;
+    }
+}
+
+class CourtOfVantressEffect extends OneShotEffect {
+
+    private static final CopyApplier applier = new CopyApplier() {
+        @Override
+        public boolean apply(Game game, MageObject blueprint, Ability source, UUID targetObjectId) {
+            blueprint.getAbilities().add(CourtOfVantress.makeAbility());
+            return true;
+        }
+    };
+
+    CourtOfVantressEffect() {
+        super(Outcome.Benefit);
+        staticText = "choose up to one other target enchantment or artifact. If you're the monarch, " +
+                "you may create a token that's a copy of it. If you're not the monarch, " +
+                "you may have {this} become a copy of it, except it has this ability";
+    }
+
+    private CourtOfVantressEffect(final CourtOfVantressEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public CourtOfVantressEffect copy() {
+        return new CourtOfVantressEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        Player player = game.getPlayer(source.getControllerId());
+        Permanent permanent = game.getPermanent(getTargetPointer().getFirst(game, source));
+        if (player == null || permanent == null) {
+            return false;
+        }
+        if (source.isControlledBy(game.getMonarchId())) {
+            return player.chooseUse(outcome, "Create a token copy of " + permanent.getIdName() + '?', source, game)
+                    && new CreateTokenCopyTargetEffect().setSavedPermanent(permanent).apply(game, source);
+        }
+        Permanent sourcePermanent = source.getSourcePermanentIfItStillExists(game);
+        if (sourcePermanent == null || !player.chooseUse(outcome, "Have " + sourcePermanent.getIdName() +
+                " become a copy of " + permanent.getIdName() + '?', source, game)) {
+            return false;
+        }
+        game.copyPermanent(Duration.Custom, permanent, sourcePermanent.getId(), source, applier);
+        return true;
+    }
+}

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

@@ -42,6 +42,7 @@ public final class WildsOfEldraineCommander extends ExpansionSet {
         cards.add(new SetCardInfo("Command Tower", 156, Rarity.COMMON, mage.cards.c.CommandTower.class));
         cards.add(new SetCardInfo("Consider", 87, Rarity.COMMON, mage.cards.c.Consider.class));
         cards.add(new SetCardInfo("Court of Ardenvale", 21, Rarity.RARE, mage.cards.c.CourtOfArdenvale.class));
+        cards.add(new SetCardInfo("Court of Vantress", 22, Rarity.RARE, mage.cards.c.CourtOfVantress.class));
         cards.add(new SetCardInfo("Danitha Capashen, Paragon", 64, Rarity.UNCOMMON, mage.cards.d.DanithaCapashenParagon.class));
         cards.add(new SetCardInfo("Darkwater Catacombs", 157, Rarity.RARE, mage.cards.d.DarkwaterCatacombs.class));
         cards.add(new SetCardInfo("Daybreak Coronet", 65, Rarity.RARE, mage.cards.d.DaybreakCoronet.class));