[EOE] Implement Temporal Intervention

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

@@ -0,0 +1,46 @@
+package mage.cards.t;
+
+import mage.abilities.common.SimpleStaticAbility;
+import mage.abilities.condition.common.VoidCondition;
+import mage.abilities.effects.common.cost.SpellCostReductionSourceEffect;
+import mage.abilities.effects.common.discard.DiscardCardYouChooseTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.AbilityWord;
+import mage.constants.CardType;
+import mage.constants.Zone;
+import mage.filter.StaticFilters;
+import mage.target.common.TargetOpponent;
+import mage.watchers.common.VoidWatcher;
+
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class TemporalIntervention extends CardImpl {
+
+    public TemporalIntervention(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.SORCERY}, "{2}{B}");
+
+        // Void -- This spell costs {2} less to cast if a nonland permanent left the battlefield this turn or a spell was warped this turn.
+        this.addAbility(new SimpleStaticAbility(
+                Zone.ALL, new SpellCostReductionSourceEffect(2, VoidCondition.instance)
+                .setText("this spell costs {2} less to cast if a nonland permanent " +
+                        "left the battlefield this turn or a spell was warped this turn")
+        ).setRuleAtTheTop(true).setAbilityWord(AbilityWord.VOID).addHint(VoidCondition.getHint()), new VoidWatcher());
+
+        // Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.
+        this.getSpellAbility().addEffect(new DiscardCardYouChooseTargetEffect(StaticFilters.FILTER_CARD_NON_LAND));
+        this.getSpellAbility().addTarget(new TargetOpponent());
+    }
+
+    private TemporalIntervention(final TemporalIntervention card) {
+        super(card);
+    }
+
+    @Override
+    public TemporalIntervention copy() {
+        return new TemporalIntervention(this);
+    }
+}

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

@@ -44,6 +44,7 @@ public final class EdgeOfEternities extends ExpansionSet {
         cards.add(new SetCardInfo("Swamp", 264, Rarity.LAND, mage.cards.basiclands.Swamp.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("Swamp", 369, Rarity.LAND, mage.cards.basiclands.Swamp.class, FULL_ART_BFZ_VARIOUS));
         cards.add(new SetCardInfo("Tannuk, Memorial Ensign", 233, Rarity.UNCOMMON, mage.cards.t.TannukMemorialEnsign.class));
+        cards.add(new SetCardInfo("Temporal Intervention", 120, Rarity.COMMON, mage.cards.t.TemporalIntervention.class));
         cards.add(new SetCardInfo("Tezzeret, Cruel Captain", 2, Rarity.MYTHIC, mage.cards.t.TezzeretCruelCaptain.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Tezzeret, Cruel Captain", 287, Rarity.MYTHIC, mage.cards.t.TezzeretCruelCaptain.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Watery Grave", 261, Rarity.RARE, mage.cards.w.WateryGrave.class));

Mage/src/main/java/mage/abilities/condition/common/VoidCondition.java

@@ -0,0 +1,32 @@
+package mage.abilities.condition.common;
+
+import mage.abilities.Ability;
+import mage.abilities.condition.Condition;
+import mage.abilities.hint.ConditionHint;
+import mage.abilities.hint.Hint;
+import mage.game.Game;
+import mage.watchers.common.VoidWatcher;
+
+/**
+ * Requires {@link mage.watchers.common.VoidWatcher}
+ *
+ * @author TheElk801
+ */
+public enum VoidCondition implements Condition {
+    instance;
+    private static final Hint hint = new ConditionHint(instance);
+
+    public static Hint getHint() {
+        return hint;
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return VoidWatcher.checkPlayer(source.getControllerId(), game);
+    }
+
+    @Override
+    public String toString() {
+        return "a nonland permanent left the battlefield this turn or a spell was warped this turn";
+    }
+}

Mage/src/main/java/mage/constants/AbilityWord.java

@@ -63,6 +63,7 @@ public enum AbilityWord {
     THRESHOLD("Threshold"),
     UNDERGROWTH("Undergrowth"),
     VALIANT("Valiant"),
+    VOID("Void"),
     WILL_OF_THE_COUNCIL("Will of the council"),
     WILL_OF_THE_PLANESWALKERS("Will of the planeswalkers");
 

Mage/src/main/java/mage/watchers/common/VoidWatcher.java

@@ -0,0 +1,56 @@
+package mage.watchers.common;
+
+import mage.constants.WatcherScope;
+import mage.constants.Zone;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.watchers.Watcher;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * TODO: this doesn't handle warp yet
+ *
+ * @author TheElk801
+ */
+public class VoidWatcher extends Watcher {
+
+    // need to track separately for each player as it needs to be in range
+    private final Set<UUID> players = new HashSet<>();
+
+    public VoidWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        switch (event.getType()) {
+            case SPELL_CAST:
+                return;
+            case ZONE_CHANGE:
+                ZoneChangeEvent zEvent = (ZoneChangeEvent) event;
+                if (Zone.BATTLEFIELD.match(zEvent.getFromZone())
+                        && zEvent.getTarget() != null
+                        && !zEvent.getTarget().isLand(game)) {
+                    players.addAll(game.getState().getPlayersInRange(zEvent.getTarget().getControllerId(), game));
+                }
+        }
+    }
+
+    @Override
+    public void reset() {
+        super.reset();
+        players.clear();
+    }
+
+    public static boolean checkPlayer(UUID playerId, Game game) {
+        return game
+                .getState()
+                .getWatcher(VoidWatcher.class)
+                .players
+                .contains(playerId);
+    }
+}

Utils/mtg-cards-data.txt

@@ -59112,6 +59112,7 @@ Tezzeret, Cruel Captain|Edge of Eternities|2|M|{3}|Legendary Planeswalker - Tezz
 The Seriema|Edge of Eternities|35|R|{1}{W}{W}|Legendary Artifact - Spacecraft|||When The Seriema enters, search your library for a legendary creature card, reveal it, put it into your hand, then shuffle.$Station$STATION 7+$Flying$Other tapped legendary creatures you control have indestructible.$5/5|
 Embrace Oblivion|Edge of Eternities|98|C|{B}|Sorcery|||As an additional cost to cast this spell, sacrifice an artifact or creature.$Destroy target creature or Spacecraft.|
 Sothera, the Supervoid|Edge of Eternities|115|M|{2}{B}{B}|Legendary Enchantment|||Whenever a creature you control dies, each opponent chooses a creature they control and exiles it.$At the beginning of your end step, if a player controls no creatures, sacrifice Sothera, then put a creature card exiled with it onto the battlefield under your control with two additional +1/+1 counters on it.|
+Temporal Intervention|Edge of Eternities|120|C|{2}{B}|Sorcery|||Void -- This spell costs {2} less to cast if a nonland permanent left the battlefield this turn or a spell was warped this turn.$Target opponent reveals their hand. You choose a nonland card from it. That player discards that card.|
 Harmonious Grovestrider|Edge of Eternities|189|U|{3}{G}{G}|Creature - Beast|*|*|Ward {2}$This creature's power and toughness are each equal to the number of lands you control.|
 Alpharael, Dreaming Acolyte|Edge of Eternities|212|U|{1}{U}{B}|Legendary Creature - Human Cleric|2|3|When Alpharael enters, draw two cards. Then discard two cards unless you discard an artifact card. During your turn, Alpharael has deathtouch.|
 Sami, Ship's Engineer|Edge of Eternities|225|U|{2}{R}{W}|Legendary Creature - Human Artificer|2|4|At the beginning of your end step, if you control two or more tapped creatures, create a tapped 2/2 colorless Robot artifact creature token.|