From a9565268e0044a47c8b0347ecd72055ced02081f Mon Sep 17 00:00:00 2001
From: Evan Kranzler <theelk801@gmail.com>
Date: Tue, 4 Oct 2022 20:56:18 -0400
Subject: [PATCH] [40K] Implemented Keeper of Secrets

---
 .../src/mage/cards/k/KeeperOfSecrets.java     | 97 +++++++++++++++++++
 Mage.Sets/src/mage/sets/Warhammer40000.java   |  1 +
 2 files changed, 98 insertions(+)
 create mode 100644 Mage.Sets/src/mage/cards/k/KeeperOfSecrets.java

diff --git a/Mage.Sets/src/mage/cards/k/KeeperOfSecrets.java b/Mage.Sets/src/mage/cards/k/KeeperOfSecrets.java
new file mode 100644
index 00000000000..27461b06cd7
--- /dev/null
+++ b/Mage.Sets/src/mage/cards/k/KeeperOfSecrets.java
@@ -0,0 +1,97 @@
+package mage.cards.k;
+
+import mage.MageInt;
+import mage.abilities.Ability;
+import mage.abilities.common.SpellCastControllerTriggeredAbility;
+import mage.abilities.dynamicvalue.DynamicValue;
+import mage.abilities.effects.Effect;
+import mage.abilities.effects.common.DamageTargetEffect;
+import mage.abilities.keyword.FirstStrikeAbility;
+import mage.abilities.keyword.HasteAbility;
+import mage.cards.CardImpl;
+import mage.cards.CardSetInfo;
+import mage.constants.CardType;
+import mage.constants.SubType;
+import mage.constants.Zone;
+import mage.filter.FilterSpell;
+import mage.filter.predicate.Predicates;
+import mage.filter.predicate.card.CastFromZonePredicate;
+import mage.game.Game;
+import mage.game.stack.Spell;
+import mage.target.common.TargetOpponent;
+
+import java.util.Objects;
+import java.util.Optional;
+import java.util.UUID;
+
+/**
+ * @author TheElk801
+ */
+public final class KeeperOfSecrets extends CardImpl {
+
+    private static final FilterSpell filter = new FilterSpell("a spell from anywhere other than your hand");
+
+    static {
+        filter.add(Predicates.not(new CastFromZonePredicate(Zone.HAND)));
+    }
+
+    public KeeperOfSecrets(UUID ownerId, CardSetInfo setInfo) {
+        super(ownerId, setInfo, new CardType[]{CardType.CREATURE}, "{5}{R}");
+
+        this.subtype.add(SubType.DEMON);
+        this.power = new MageInt(6);
+        this.toughness = new MageInt(4);
+
+        // First strike
+        this.addAbility(FirstStrikeAbility.getInstance());
+
+        // Haste
+        this.addAbility(HasteAbility.getInstance());
+
+        // Symphony of Pain -- Whenever you cast a spell from anywhere other than your hand, Keeper of Secrets deals damage equal to that spell's mana value to target opponent.
+        Ability ability = new SpellCastControllerTriggeredAbility(
+                new DamageTargetEffect(KeeperOfSecretsValue.instance)
+                        .setText("{this} deals damage equal to that spell's mana value to target opponent"),
+                filter, false
+        );
+        ability.addTarget(new TargetOpponent());
+        this.addAbility(ability.withFlavorWord("Symphony of Pain"));
+    }
+
+    private KeeperOfSecrets(final KeeperOfSecrets card) {
+        super(card);
+    }
+
+    @Override
+    public KeeperOfSecrets copy() {
+        return new KeeperOfSecrets(this);
+    }
+}
+
+enum KeeperOfSecretsValue implements DynamicValue {
+    instance;
+
+    @Override
+    public int calculate(Game game, Ability sourceAbility, Effect effect) {
+        return Optional
+                .ofNullable((Spell) effect.getValue("spellCast"))
+                .filter(Objects::nonNull)
+                .map(Spell::getManaValue)
+                .orElse(0);
+    }
+
+    @Override
+    public KeeperOfSecretsValue copy() {
+        return this;
+    }
+
+    @Override
+    public String getMessage() {
+        return "";
+    }
+
+    @Override
+    public String toString() {
+        return "X";
+    }
+}
diff --git a/Mage.Sets/src/mage/sets/Warhammer40000.java b/Mage.Sets/src/mage/sets/Warhammer40000.java
index ec1f72c5761..526f78b4b42 100644
--- a/Mage.Sets/src/mage/sets/Warhammer40000.java
+++ b/Mage.Sets/src/mage/sets/Warhammer40000.java
@@ -133,6 +133,7 @@ public final class Warhammer40000 extends ExpansionSet {
         cards.add(new SetCardInfo("Inquisitorial Rosette", 159, Rarity.RARE, mage.cards.i.InquisitorialRosette.class));
         cards.add(new SetCardInfo("Inspiring Call", 217, Rarity.UNCOMMON, mage.cards.i.InspiringCall.class));
         cards.add(new SetCardInfo("Island", 307, Rarity.LAND, mage.cards.basiclands.Island.class, NON_FULL_USE_VARIOUS));
+        cards.add(new SetCardInfo("Keeper of Secrets", 78, Rarity.RARE, mage.cards.k.KeeperOfSecrets.class));
         cards.add(new SetCardInfo("Kill! Maim! Burn!", 128, Rarity.RARE, mage.cards.k.KillMaimBurn.class));
         cards.add(new SetCardInfo("Knight Paladin", 160, Rarity.RARE, mage.cards.k.KnightPaladin.class));
         cards.add(new SetCardInfo("Launch the Fleet", 188, Rarity.RARE, mage.cards.l.LaunchTheFleet.class));