From 9e587ca05d6e73c72bf500fb3a567aca388a7d5a Mon Sep 17 00:00:00 2001
From: Cameron Merkel <44722506+Cguy7777@users.noreply.github.com>
Date: Tue, 27 Feb 2024 16:30:17 -0600
Subject: [PATCH] [MKM] Implement Blood Spatter Analysis (#11863)

---
 .../mage/cards/b/BloodSpatterAnalysis.java    | 105 ++++++++++++++++++
 .../src/mage/sets/MurdersAtKarlovManor.java   |   2 +
 .../main/java/mage/counters/CounterType.java  |   1 +
 3 files changed, 108 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/b/BloodSpatterAnalysis.java

diff --git a/Mage.Sets/src/mage/cards/b/BloodSpatterAnalysis.java b/Mage.Sets/src/mage/cards/b/BloodSpatterAnalysis.java
new file mode 100644
index 00000000000..764b63a052d
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/b/BloodSpatterAnalysis.java
@@ -0,0 +1,105 @@
+package mage.cards.b;
+
+import mage.abilities.Ability;
+import mage.abilities.TriggeredAbilityImpl;
+import mage.abilities.common.EntersBattlefieldTriggeredAbility;
+import mage.abilities.common.delayed.ReflexiveTriggeredAbility;
+import mage.abilities.condition.common.SourceHasCounterCondition;
+import mage.abilities.costs.common.SacrificeSourceCost;
+import mage.abilities.decorator.ConditionalOneShotEffect;
+import mage.abilities.effects.common.DamageTargetEffect;
+import mage.abilities.effects.common.DoWhenCostPaid;
+import mage.abilities.effects.common.MillCardsControllerEffect;
+import mage.abilities.effects.common.ReturnFromGraveyardToHandTargetEffect;
+import mage.abilities.effects.common.counter.AddCountersSourceEffect;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.Zone;
+import mage.counters.CounterType;
+import mage.filter.StaticFilters;
+import mage.game.Game;
+import mage.game.events.GameEvent;
+import mage.game.events.ZoneChangeBatchEvent;
+import mage.game.events.ZoneChangeEvent;
+import mage.game.permanent.Permanent;
+import mage.target.common.TargetCardInYourGraveyard;
+import mage.target.common.TargetOpponentsCreaturePermanent;
+
+import java.util.UUID;
+
+/**
+ * @author Cguy7777
+ */
+public final class BloodSpatterAnalysis extends CardImpl {
+
+    public BloodSpatterAnalysis(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.ENCHANTMENT}, "{B}{R}");
+
+        // When Blood Spatter Analysis enters the battlefield, it deals 3 damage to target creature an opponent controls.
+        Ability ability = new EntersBattlefieldTriggeredAbility(new DamageTargetEffect(3));
+        ability.addTarget(new TargetOpponentsCreaturePermanent());
+        this.addAbility(ability);
+
+        // Whenever one or more creatures die, mill a card and put a bloodstain counter on Blood Spatter Analysis.
+        // Then sacrifice it if it has five or more bloodstain counters on it.
+        // When you do, return target creature card from your graveyard to your hand.
+        this.addAbility(new BloodSpatterAnalysisTriggeredAbility());
+    }
+
+    private BloodSpatterAnalysis(final BloodSpatterAnalysis card) {
+        super(card);
+    }
+
+    @Override
+    public BloodSpatterAnalysis copy() {
+        return new BloodSpatterAnalysis(this);
+    }
+}
+
+class BloodSpatterAnalysisTriggeredAbility extends TriggeredAbilityImpl {
+
+    BloodSpatterAnalysisTriggeredAbility() {
+        super(Zone.BATTLEFIELD, new MillCardsControllerEffect(1));
+        this.addEffect(new AddCountersSourceEffect(CounterType.BLOODSTAIN.createInstance()).concatBy("and"));
+
+        ReflexiveTriggeredAbility returnAbility = new ReflexiveTriggeredAbility(new ReturnFromGraveyardToHandTargetEffect(), false);
+        returnAbility.addTarget(new TargetCardInYourGraveyard(StaticFilters.FILTER_CARD_CREATURE_YOUR_GRAVEYARD));
+
+        this.addEffect(new ConditionalOneShotEffect(
+                new DoWhenCostPaid(returnAbility, new SacrificeSourceCost(), null, false),
+                new SourceHasCounterCondition(CounterType.BLOODSTAIN, 5))
+                .setText("Then sacrifice it if it has five or more bloodstain counters on it. When you do, return target creature card from your graveyard to your hand"));
+
+        setTriggerPhrase("Whenever one or more creatures die, ");
+    }
+
+    private BloodSpatterAnalysisTriggeredAbility(final BloodSpatterAnalysisTriggeredAbility ability) {
+        super(ability);
+    }
+
+    @Override
+    public boolean checkEventType(GameEvent event, Game game) {
+        return event.getType() == GameEvent.EventType.ZONE_CHANGE_BATCH;
+    }
+
+    @Override
+    public boolean checkTrigger(GameEvent event, Game game) {
+        ZoneChangeBatchEvent zBatchEvent = (ZoneChangeBatchEvent) event;
+
+        for (ZoneChangeEvent zEvent : zBatchEvent.getEvents()) {
+            if (zEvent.isDiesEvent()) {
+                Permanent permanent = game.getPermanentOrLKIBattlefield(zEvent.getTargetId());
+                if (permanent != null && permanent.isCreature(game)) {
+                    return true;
+                }
+            }
+        }
+        return false;
+    }
+
+    @Override
+    public BloodSpatterAnalysisTriggeredAbility copy() {
+        return new BloodSpatterAnalysisTriggeredAbility(this);
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java b/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java
index 3feabca7833..be0f1d2a92a 100644
--- a/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java
+++ b/Mage.Sets/src/mage/sets/MurdersAtKarlovManor.java
@@ -47,6 +47,8 @@ public final class MurdersAtKarlovManor extends ExpansionSet {
         cards.add(new SetCardInfo("Basilica Stalker", 78, Rarity.COMMON, mage.cards.b.BasilicaStalker.class));
         cards.add(new SetCardInfo("Behind the Mask", 39, Rarity.COMMON, mage.cards.b.BehindTheMask.class));
         cards.add(new SetCardInfo("Benthic Criminologists", 40, Rarity.COMMON, mage.cards.b.BenthicCriminologists.class));
+        cards.add(new SetCardInfo("Blood Spatter Analysis", 189, Rarity.RARE, mage.cards.b.BloodSpatterAnalysis.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Blood Spatter Analysis", 413, Rarity.RARE, mage.cards.b.BloodSpatterAnalysis.class, NON_FULL_USE_VARIOUS));
         cards.add(new SetCardInfo("Bolrac-Clan Basher", 112, Rarity.UNCOMMON, mage.cards.b.BolracClanBasher.class));
         cards.add(new SetCardInfo("Branch of Vitu-Ghazi", 258, Rarity.UNCOMMON, mage.cards.b.BranchOfVituGhazi.class));
         cards.add(new SetCardInfo("Burden of Proof", 42, Rarity.UNCOMMON, mage.cards.b.BurdenOfProof.class));
diff --git a/Mage/src/main/java/mage/counters/CounterType.java b/Mage/src/main/java/mage/counters/CounterType.java
index 98be15ed96d..4acfdb94ded 100644
--- a/Mage/src/main/java/mage/counters/CounterType.java
+++ b/Mage/src/main/java/mage/counters/CounterType.java
@@ -26,6 +26,7 @@ public enum CounterType {
     BLESSING("blessing"),
     BLOOD("blood"),
     BLOODLINE("bloodline"),
+    BLOODSTAIN("bloodstain"),
     BOOK("book"),
     BORE("bore"),
     BOUNTY("bounty"),