From a4adf6f844faacd19f13475b144e01bb5e433eeb Mon Sep 17 00:00:00 2001
From: theelk801 <theelk801@gmail.com>
Date: Fri, 14 Nov 2025 15:51:15 -0500
Subject: [PATCH] [TLE] Implement Nightmares and Daydreams

---
 .../mage/cards/n/NightmaresAndDaydreams.java  | 115 ++++++++++++++++++
 .../sets/AvatarTheLastAirbenderEternal.java   |   1 +
 2 files changed, 116 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/n/NightmaresAndDaydreams.java

diff --git a/Mage.Sets/src/mage/cards/n/NightmaresAndDaydreams.java b/Mage.Sets/src/mage/cards/n/NightmaresAndDaydreams.java
new file mode 100644
index 00000000000..b314cfa05d0
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/n/NightmaresAndDaydreams.java
@@ -0,0 +1,115 @@
+package mage.cards.n;
+
+import mage.abilities.Ability;
+import mage.abilities.DelayedTriggeredAbility;
+import mage.abilities.common.SagaAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.decorator.ConditionalOneShotEffect;
+import mage.abilities.dynamicvalue.common.SavedDamageValue;
+import mage.abilities.effects.common.CreateDelayedTriggeredAbilityEffect;
+import mage.abilities.effects.common.DrawCardSourceControllerEffect;
+import mage.abilities.effects.common.MillCardsTargetEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Duration;
+import mage.constants.SagaChapter;
+import mage.constants.SubType;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.stack.Spell;
+import mage.target.TargetPlayer;
+
+import java.util.Objects;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class NightmaresAndDaydreams extends CardImpl {
+
+    public NightmaresAndDaydreams(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{2}{U}");
+
+        this.subtype.add(SubType.SAGA);
+
+        // (As this Saga enters and after your draw step, add a lore counter. Sacrifice after IV.)
+        SagaAbility sagaAbility = new SagaAbility(this, SagaChapter.CHAPTER_IV);
+
+        // I, II, III -- Until your next turn, whenever you cast an instant or sorcery spell, target player mills cards equal to that spell's mana value.
+        sagaAbility.addChapterEffect(
+                this, SagaChapter.CHAPTER_I, SagaChapter.CHAPTER_III,
+                new CreateDelayedTriggeredAbilityEffect(new NightmaresAndDaydreamsTriggeredAbility())
+        );
+
+        // IV -- Draw a card. If a graveyard has twenty or more cards in it, draw three cards instead.
+        sagaAbility.addChapterEffect(
+                this, SagaChapter.CHAPTER_IV,
+                new ConditionalOneShotEffect(
+                        new DrawCardSourceControllerEffect(3), new DrawCardSourceControllerEffect(1),
+                        NightmaresAndDaydreamsCondition.instance, "draw a card. " +
+                        "If a graveyard has twenty or more cards in it, draw three cards instead"
+                )
+        );
+        this.addAbility(sagaAbility);
+    }
+
+    private NightmaresAndDaydreams(final NightmaresAndDaydreams card) {
+        super(card);
+    }
+
+    @Override
+    public NightmaresAndDaydreams copy() {
+        return new NightmaresAndDaydreams(this);
+    }
+}
+
+enum NightmaresAndDaydreamsCondition implements Condition {
+    instance;
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return game
+                .getState()
+                .getPlayersInRange(source.getControllerId(), game)
+                .stream()
+                .map(game::getPlayer)
+                .filter(Objects::nonNull)
+                .anyMatch(player -> player.getGraveyard().size() >= 20);
+    }
+}
+
+class NightmaresAndDaydreamsTriggeredAbility extends DelayedTriggeredAbility {
+
+    NightmaresAndDaydreamsTriggeredAbility() {
+        super(new MillCardsTargetEffect(SavedDamageValue.MANY)
+                        .setText("target player mills cards equal to that spell's mana value"),
+                Duration.UntilYourNextTurn, false, false);
+        this.setTriggerPhrase("Until your next turn, whenever you cast an instant or sorcery spell, ");
+        this.addTarget(new TargetPlayer());
+    }
+
+    private NightmaresAndDaydreamsTriggeredAbility(final NightmaresAndDaydreamsTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public NightmaresAndDaydreamsTriggeredAbility copy() {
+        return new NightmaresAndDaydreamsTriggeredAbility(this);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.SPELL_CAST;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        Spell spell = game.getSpell(event.getTargetId());
+        if (spell == null || !spell.isControlledBy(getControllerId()) || !spell.isInstantOrSorcery(game)) {
+            return false;
+        }
+        this.getEffects().setValue("damage", spell.getManaValue());
+        return true;
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java b/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java
index ce656693480..e86448a8434 100644
--- a/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java
+++ b/Mage.Sets/src/mage/sets/AvatarTheLastAirbenderEternal.java
@@ -203,6 +203,7 @@ public final class AvatarTheLastAirbenderEternal extends ExpansionSet {
         cards.add(new SetCardInfo("Mountain", 296, Rarity.LAND, mage.cards.basiclands.Mountain.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Mystic Remora", 16, Rarity.MYTHIC, mage.cards.m.MysticRemora.class));
         cards.add(new SetCardInfo("Mystical Tutor", 308, Rarity.RARE, mage.cards.m.MysticalTutor.class));
+        cards.add(new SetCardInfo("Nightmares and Daydreams", 94, Rarity.RARE, mage.cards.n.NightmaresAndDaydreams.class));
         cards.add(new SetCardInfo("Noxious Gearhulk", 25, Rarity.MYTHIC, mage.cards.n.NoxiousGearhulk.class));
         cards.add(new SetCardInfo("Obscuring Haze", 313, Rarity.RARE, mage.cards.o.ObscuringHaze.class));
         cards.add(new SetCardInfo("Overwhelming Victory", 123, Rarity.RARE, mage.cards.o.OverwhelmingVictory.class, NON_FULL_USE_VARIOUS));