Implemented Teferi, Timeless Voyager

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

@@ -0,0 +1,140 @@
+package mage.cards.t;
+
+import mage.MageObjectReference;
+import mage.abilities.Ability;
+import mage.abilities.LoyaltyAbility;
+import mage.abilities.common.PlaneswalkerEntersWithLoyaltyCountersAbility;
+import mage.abilities.effects.ContinuousRuleModifyingEffectImpl;
+import mage.abilities.effects.OneShotEffect;
+import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.abilities.effects.common.PutOnLibraryTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.target.common.TargetCreaturePermanent;
+import mage.target.common.TargetOpponent;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class TeferiTimelessVoyager extends CardImpl {
+
+    public TeferiTimelessVoyager(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.PLANESWALKER}, "{4}{U}{U}");
+
+        this.addSuperType(SuperType.LEGENDARY);
+        this.subtype.add(SubType.TEFERI);
+        this.addAbility(new PlaneswalkerEntersWithLoyaltyCountersAbility(4));
+
+        // +1: Draw a card.
+        this.addAbility(new LoyaltyAbility(new DrawCardSourceControllerEffect(1), 1));
+
+        // −3: Put target creature on top of its owner's library.
+        Ability ability = new LoyaltyAbility(new PutOnLibraryTargetEffect(true), -3);
+        ability.addTarget(new TargetCreaturePermanent());
+        this.addAbility(ability);
+
+        // −8: Each creature target opponent controls phases out. Until the end of your next turn, they can't phase in.
+        ability = new LoyaltyAbility(new TeferiTimelessVoyagerEffect(), -8);
+        ability.addTarget(new TargetOpponent());
+        this.addAbility(ability);
+    }
+
+    private TeferiTimelessVoyager(final TeferiTimelessVoyager card) {
+        super(card);
+    }
+
+    @Override
+    public TeferiTimelessVoyager copy() {
+        return new TeferiTimelessVoyager(this);
+    }
+}
+
+class TeferiTimelessVoyagerEffect extends OneShotEffect {
+
+    TeferiTimelessVoyagerEffect() {
+        super(Outcome.Benefit);
+        staticText = "each creature target opponent controls phases out. " +
+                "Until the end of your next turn, they can't phase in";
+    }
+
+    private TeferiTimelessVoyagerEffect(final TeferiTimelessVoyagerEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public TeferiTimelessVoyagerEffect copy() {
+        return new TeferiTimelessVoyagerEffect(this);
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        for (Permanent permanent : game
+                .getBattlefield()
+                .getAllActivePermanents(
+                        StaticFilters.FILTER_PERMANENT_CREATURE, source.getFirstTarget(), game
+                )) {
+            MageObjectReference mor = new MageObjectReference(permanent, game);
+            permanent.phaseOut(game);
+            game.addEffect(new TeferiTimelessVoyagerPhaseEffect(mor), source);
+        }
+        return true;
+    }
+}
+
+class TeferiTimelessVoyagerPhaseEffect extends ContinuousRuleModifyingEffectImpl {
+
+    private int castOnTurn = 0;
+    private final MageObjectReference mor;
+
+    TeferiTimelessVoyagerPhaseEffect(MageObjectReference mor) {
+        super(Duration.Custom, Outcome.Neutral);
+        this.mor = mor;
+    }
+
+    private TeferiTimelessVoyagerPhaseEffect(final TeferiTimelessVoyagerPhaseEffect effect) {
+        super(effect);
+        this.castOnTurn = effect.castOnTurn;
+        this.mor = effect.mor;
+    }
+
+    @Override
+    public TeferiTimelessVoyagerPhaseEffect copy() {
+        return new TeferiTimelessVoyagerPhaseEffect(this);
+    }
+
+    @Override
+    public void init(Ability source, Game game) {
+        super.init(source, game);
+        castOnTurn = game.getTurnNum();
+    }
+
+    @Override
+    public boolean isInactive(Ability source, Game game) {
+        if (castOnTurn != game.getTurnNum() && game.getPhase().getStep().getType() == PhaseStep.END_TURN) {
+            return game.isActivePlayer(source.getControllerId());
+        }
+        return false;
+    }
+
+    @Override
+    public boolean checksEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.PHASE_IN;
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return true;
+    }
+
+    @Override
+    public boolean applies(GameEvent event, Ability source, Game game) {
+        return this.mor.refersTo(event.getTargetId(), game);
+    }
+}

Mage.Sets/src/mage/sets/CoreSet2021.java

@@ -272,6 +272,7 @@ public final class CoreSet2021 extends ExpansionSet {
         cards.add(new SetCardInfo("Teferi's Tutelage", 78, Rarity.UNCOMMON, mage.cards.t.TeferisTutelage.class));
         cards.add(new SetCardInfo("Teferi's Wavecaster", 327, Rarity.RARE, mage.cards.t.TeferisWavecaster.class));
         cards.add(new SetCardInfo("Teferi, Master of Time", 75, Rarity.MYTHIC, mage.cards.t.TeferiMasterOfTime.class));
+        cards.add(new SetCardInfo("Teferi, Timeless Voyager", 324, Rarity.MYTHIC, mage.cards.t.TeferiTimelessVoyager.class));
         cards.add(new SetCardInfo("Tempered Veteran", 41, Rarity.UNCOMMON, mage.cards.t.TemperedVeteran.class));
         cards.add(new SetCardInfo("Temple of Epiphany", 252, Rarity.RARE, mage.cards.t.TempleOfEpiphany.class));
         cards.add(new SetCardInfo("Temple of Malady", 253, Rarity.RARE, mage.cards.t.TempleOfMalady.class));