From 043e4b80509f7f4f874378f5de5577b5ef87a02f Mon Sep 17 00:00:00 2001
From: theelk801 <theelk801@gmail.com>
Date: Fri, 28 Jun 2024 10:30:25 -0400
Subject: [PATCH] [BLB] Implement Lilypad Village

---
 .../src/mage/cards/l/LilypadVillage.java      | 122 ++++++++++++++++++
 Mage.Sets/src/mage/sets/Bloomburrow.java      |   1 +
 2 files changed, 123 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/l/LilypadVillage.java

diff --git a/Mage.Sets/src/mage/cards/l/LilypadVillage.java b/Mage.Sets/src/mage/cards/l/LilypadVillage.java
new file mode 100644
index 00000000000..814a0e2ff46
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/l/LilypadVillage.java
@@ -0,0 +1,122 @@
+package mage.cards.l;
+
+import mage.Mana;
+import mage.abilities.Ability;
+import mage.abilities.common.ActivateIfConditionActivatedAbility;
+import mage.abilities.condition.Condition;
+import mage.abilities.costs.common.TapSourceCost;
+import mage.abilities.costs.mana.ManaCostsImpl;
+import mage.abilities.effects.keyword.SurveilEffect;
+import mage.abilities.hint.ConditionHint;
+import mage.abilities.hint.Hint;
+import mage.abilities.mana.ColorlessManaAbility;
+import mage.abilities.mana.ConditionalColoredManaAbility;
+import mage.abilities.mana.conditional.ConditionalSpellManaBuilder;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.constants.WatcherScope;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.events.EntersTheBattlefieldEvent;
+import mage.game.events.GameEvent;
+import mage.game.permanent.Permanent;
+import mage.watchers.Watcher;
+
+import java.util.HashSet;
+import java.util.Set;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class LilypadVillage extends CardImpl {
+
+    public LilypadVillage(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.LAND}, "");
+
+        // {T}: Add {C}.
+        this.addAbility(new ColorlessManaAbility());
+
+        // {T} Add {U}. Spend this mana only to cast a creature spell.
+        this.addAbility(new ConditionalColoredManaAbility(
+                Mana.BlueMana(1), new ConditionalSpellManaBuilder(StaticFilters.FILTER_SPELL_A_CREATURE)
+        ));
+
+        // {U}, {T}: Surveil 2. Activate only if a Bird, Frog, Otter, or Rat entered the battlefield under your control this turn.
+        Ability ability = new ActivateIfConditionActivatedAbility(
+                new SurveilEffect(2), new ManaCostsImpl<>("{U}"), LilypadVillageCondition.instance
+        );
+        ability.addCost(new TapSourceCost());
+        this.addAbility(ability.addHint(LilypadVillageCondition.getHint()), new LilypadVillageWatcher());
+    }
+
+    private LilypadVillage(final LilypadVillage card) {
+        super(card);
+    }
+
+    @Override
+    public LilypadVillage copy() {
+        return new LilypadVillage(this);
+    }
+}
+
+enum LilypadVillageCondition implements Condition {
+    instance;
+    private static final Hint hint = new ConditionHint(
+            instance, "A Bird, Frog, Otter, or Rat entered the battlefield under your control this turn"
+    );
+
+    public static Hint getHint() {
+        return hint;
+    }
+
+    @Override
+    public boolean apply(Game game, Ability source) {
+        return LilypadVillageWatcher.checkPlayer(source.getControllerId(), game);
+    }
+
+    @Override
+    public String toString() {
+        return "a Bird, Frog, Otter, or Rat entered the battlefield under your control this turn";
+    }
+}
+
+class LilypadVillageWatcher extends Watcher {
+
+    private final Set<UUID> players = new HashSet<>();
+
+    LilypadVillageWatcher() {
+        super(WatcherScope.GAME);
+    }
+
+    @Override
+    public void watch(GameEvent event, Game game) {
+        if (event.getType() != GameEvent.EventType.ENTERS_THE_BATTLEFIELD) {
+            return;
+        }
+        Permanent permanent = ((EntersTheBattlefieldEvent) event).getTarget();
+        if (permanent != null
+                && (permanent.hasSubtype(SubType.BIRD, game)
+                || permanent.hasSubtype(SubType.FROG, game)
+                || permanent.hasSubtype(SubType.OTTER, game)
+                || permanent.hasSubtype(SubType.RAT, game))) {
+            players.add(permanent.getControllerId());
+        }
+    }
+
+    @Override
+    public void reset() {
+        super.reset();
+        players.clear();
+    }
+
+    static boolean checkPlayer(UUID playerId, Game game) {
+        return game
+                .getState()
+                .getWatcher(LilypadVillageWatcher.class)
+                .players
+                .contains(playerId);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/Bloomburrow.java b/Mage.Sets/src/mage/sets/Bloomburrow.java
index 11b95b3b205..b896e8206bc 100644
--- a/Mage.Sets/src/mage/sets/Bloomburrow.java
+++ b/Mage.Sets/src/mage/sets/Bloomburrow.java
@@ -23,6 +23,7 @@ public final class Bloomburrow extends ExpansionSet {
 
         cards.add(new SetCardInfo("Bria, Riptide Rogue", 379, Rarity.MYTHIC, mage.cards.b.BriaRiptideRogue.class));
         cards.add(new SetCardInfo("Byrke, Long Ear of the Law", 380, Rarity.MYTHIC, mage.cards.b.ByrkeLongEarOfTheLaw.class));
+        cards.add(new SetCardInfo("Lilypad Village", 255, Rarity.UNCOMMON, mage.cards.l.LilypadVillage.class));
         cards.add(new SetCardInfo("Lumra, Bellow of the Woods", 183, Rarity.MYTHIC, mage.cards.l.LumraBellowOfTheWoods.class));
         cards.add(new SetCardInfo("Lupinflower Village", 256, Rarity.UNCOMMON, mage.cards.l.LupinflowerVillage.class));
         cards.add(new SetCardInfo("Mabel, Heir to Cragflame", 224, Rarity.RARE, mage.cards.m.MabelHeirToCragflame.class));