[STX] Implemented Retriever Phoenix

Mage.Sets/src/mage/cards/r/RetrieverPhoenix.java

@@ -0,0 +1,98 @@
+package mage.cards.r;
+
+import mage.MageInt;
+import mage.MageObject;
+import mage.abilities.Ability;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.common.CastFromEverywhereSourceCondition;
+import mage.abilities.decorator.ConditionalInterveningIfTriggeredAbility;
+import mage.abilities.effects.ReplacementEffectImpl;
+import mage.abilities.effects.common.LearnEffect;
+import mage.abilities.keyword.FlyingAbility;
+import mage.abilities.keyword.HasteAbility;
+import mage.cards.Card;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.*;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.players.Player;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class RetrieverPhoenix extends CardImpl {
+
+    public RetrieverPhoenix(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{3}{R}");
+
+        this.subtype.add(SubType.PHOENIX);
+        this.power = new MageInt(2);
+        this.toughness = new MageInt(2);
+
+        // Flying
+        this.addAbility(FlyingAbility.getInstance());
+
+        // Haste
+        this.addAbility(HasteAbility.getInstance());
+
+        // When Retriever Phoenix enters the battlefield, if you cast it, learn.
+        this.addAbility(new ConditionalInterveningIfTriggeredAbility(
+                new EntersBattlefieldTriggeredAbility(new LearnEffect()), CastFromEverywhereSourceCondition.instance,
+                "When {thi} enters the battlefield, if you cast it, " + LearnEffect.getDefaultText()
+        ));
+
+        // As long as Retriever Phoenix is in your graveyard, if you would learn, you may instead return Retriever Phoenix to the battlefield.
+        this.addAbility(new SimpleStaticAbility(Zone.GRAVEYARD, new RetrieverPhoenixEffect()));
+    }
+
+    private RetrieverPhoenix(final RetrieverPhoenix card) {
+        super(card);
+    }
+
+    @Override
+    public RetrieverPhoenix copy() {
+        return new RetrieverPhoenix(this);
+    }
+}
+
+class RetrieverPhoenixEffect extends ReplacementEffectImpl {
+
+    RetrieverPhoenixEffect() {
+        super(Duration.WhileInGraveyard, Outcome.PutCreatureInPlay);
+        staticText = "as long as {this} is in your graveyard, if you would learn, " +
+                "you may instead return {this} to the battlefield";
+    }
+
+    private RetrieverPhoenixEffect(final RetrieverPhoenixEffect effect) {
+        super(effect);
+    }
+
+    @Override
+    public RetrieverPhoenixEffect copy() {
+        return new RetrieverPhoenixEffect(this);
+    }
+
+    @Override
+    public boolean replaceEvent(GameEvent event, Ability source, Game game) {
+        MageObject sourceObject = source.getSourceObjectIfItStillExists(game);
+        Player player = game.getPlayer(source.getControllerId());
+        return sourceObject instanceof Card
+                && player != null
+                && player.chooseUse(outcome, "Return " + sourceObject.getName() + " to the battlefield instead of learning?", source, game)
+                && player.moveCards((Card) sourceObject, Zone.BATTLEFIELD, source, game);
+    }
+
+    @Override
+    public boolean checksEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.LEARN;
+    }
+
+    @Override
+    public boolean applies(GameEvent event, Ability source, Game game) {
+        return source.isControlledBy(event.getPlayerId());
+    }
+}

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

@@ -198,6 +198,7 @@ public final class StrixhavenSchoolOfMages extends ExpansionSet {
         cards.add(new SetCardInfo("Reject", 50, Rarity.COMMON, mage.cards.r.Reject.class));
         cards.add(new SetCardInfo("Relic Sloth", 223, Rarity.COMMON, mage.cards.r.RelicSloth.class));
         cards.add(new SetCardInfo("Resculpt", 51, Rarity.COMMON, mage.cards.r.Resculpt.class));
+        cards.add(new SetCardInfo("Retriever Phoenix", 113, Rarity.RARE, mage.cards.r.RetrieverPhoenix.class));
         cards.add(new SetCardInfo("Returned Pastcaller", 224, Rarity.UNCOMMON, mage.cards.r.ReturnedPastcaller.class));
         cards.add(new SetCardInfo("Rip Apart", 225, Rarity.UNCOMMON, mage.cards.r.RipApart.class));
         cards.add(new SetCardInfo("Rise of Extus", 226, Rarity.COMMON, mage.cards.r.RiseOfExtus.class));

Mage/src/main/java/mage/abilities/effects/common/LearnEffect.java

@@ -7,7 +7,7 @@ import mage.constants.Outcome;
 import mage.constants.SubType;
 import mage.filter.FilterCard;
 import mage.game.Game;
-import mage.players.Player;
+import mage.game.events.GameEvent;
 
 /**
  * @author TheElk801
@@ -20,10 +20,12 @@ public class LearnEffect extends OneShotEffect {
         filter.add(SubType.LESSON.getPredicate());
     }
 
+    private static final String defaultText = "learn. <i>(You may reveal a Lesson card you own from outside the game " +
+            "and put it into your hand, or discard a card to draw a card.)</i>";
+
     public LearnEffect() {
         super(Outcome.Neutral);
-        staticText = "learn. <i>(You may reveal a Lesson card you own from outside the game " +
-                "and put it into your hand, or discard a card to draw a card.)</i>";
+        staticText = defaultText;
     }
 
     private LearnEffect(final LearnEffect effect) {
@@ -32,7 +34,12 @@ public class LearnEffect extends OneShotEffect {
 
     @Override
     public boolean apply(Game game, Ability source) {
-        Player player = game.getPlayer(source.getControllerId());
+        if (game.replaceEvent(GameEvent.getEvent(
+                GameEvent.EventType.LEARN, source.getSourceId(),
+                source, source.getControllerId()
+        ))) {
+            return false;
+        }
         return new WishEffect(filter, true).apply(game, source)
                 || new DoIfCostPaid(
                 new DrawCardSourceControllerEffect(1), new DiscardCardCost()
@@ -43,4 +50,8 @@ public class LearnEffect extends OneShotEffect {
     public LearnEffect copy() {
         return new LearnEffect(this);
     }
+
+    public static String getDefaultText() {
+        return defaultText;
+    }
 }

Mage/src/main/java/mage/game/events/GameEvent.java

@@ -301,6 +301,7 @@ public class GameEvent implements Serializable {
         DIDNT_PAY_CUMULATIVE_UPKEEP,
         LIFE_PAID,
         CASCADE_LAND,
+        LEARN,
         //permanent events
         ENTERS_THE_BATTLEFIELD_SELF, /* 616.1a If any of the replacement and/or prevention effects are self-replacement effects (see rule 614.15),
                                         one of them must be chosen. If not, proceed to rule 616.1b. */