From c1ac2ac6aea6b2ce8735bb15e2328572f7bfbe21 Mon Sep 17 00:00:00 2001
From: LevelX2 <ludwig.hirth@online.de>
Date: Tue, 28 Jul 2020 16:28:23 +0200
Subject: [PATCH] * Conduit of Ruin - Fixed a problem with the spell cost
 reduction not working (#6698).

---
 Mage.Sets/src/mage/cards/c/ConduitOfRuin.java |  7 +--
 .../cards/single/bfz/ConduitOfRuinTest.java   | 51 +++++++++++++++++++
 2 files changed, 55 insertions(+), 3 deletions(-)
 create mode 100644 Mage.Tests/src/test/java/org/mage/test/cards/single/bfz/ConduitOfRuinTest.java

diff --git a/Mage.Sets/src/mage/cards/c/ConduitOfRuin.java b/Mage.Sets/src/mage/cards/c/ConduitOfRuin.java
index 3e857fc82d..7a86616f97 100644
--- a/Mage.Sets/src/mage/cards/c/ConduitOfRuin.java
+++ b/Mage.Sets/src/mage/cards/c/ConduitOfRuin.java
@@ -10,6 +10,7 @@ import mage.abilities.effects.Effect;
 import mage.abilities.effects.common.CastSourceTriggeredAbility;
 import mage.abilities.effects.common.cost.SpellsCostReductionControllerEffect;
 import mage.abilities.effects.common.search.SearchLibraryPutOnLibraryEffect;
+import mage.cards.Card;
 import mage.cards.CardImpl;
 import mage.cards.CardSetInfo;
 import mage.constants.CardType;
@@ -71,7 +72,7 @@ public final class ConduitOfRuin extends CardImpl {
 
 class ConduitOfRuinWatcher extends Watcher {
 
-   private Map<UUID, Integer> playerCreatureSpells;
+   private final Map<UUID, Integer> playerCreatureSpells;
 
     public ConduitOfRuinWatcher() {
         super(WatcherScope.GAME);
@@ -103,8 +104,8 @@ class FirstCastCreatureSpellPredicate implements ObjectPlayerPredicate<ObjectPla
 
     @Override
     public boolean apply(ObjectPlayer<Controllable> input, Game game) {
-        if (input.getObject() instanceof Spell
-                && ((Spell) input.getObject()).isCreature()) {
+        if (input.getObject() instanceof Card
+                && ((Card) input.getObject()).isCreature()) {
             ConduitOfRuinWatcher watcher = game.getState().getWatcher(ConduitOfRuinWatcher.class);
             return watcher != null && watcher.creatureSpellsCastThisTurn(input.getPlayerId()) == 0;
         }
diff --git a/Mage.Tests/src/test/java/org/mage/test/cards/single/bfz/ConduitOfRuinTest.java b/Mage.Tests/src/test/java/org/mage/test/cards/single/bfz/ConduitOfRuinTest.java
new file mode 100644
index 0000000000..44aca020c9
--- /dev/null
+++ b/Mage.Tests/src/test/java/org/mage/test/cards/single/bfz/ConduitOfRuinTest.java
@@ -0,0 +1,51 @@
+package org.mage.test.cards.single.bfz;
+
+import mage.constants.PhaseStep;
+import mage.constants.Zone;
+import org.junit.Test;
+import org.mage.test.serverside.base.CardTestPlayerBase;
+
+/**
+ *
+ * @author LevelX2
+ */
+
+public class ConduitOfRuinTest extends CardTestPlayerBase {
+
+    @Test
+    public void testCast() {
+        setStrictChooseMode(true);
+        
+        // Emrakul, the Aeons Torn can't be countered.
+        // When you cast Emrakul, take an extra turn after this one.
+        // Flying, protection from colored spells, annihilator 6
+        // When Emrakul is put into a graveyard from anywhere, its owner shuffles their graveyard into their library.        
+        addCard(Zone.LIBRARY, playerA, "Emrakul, the Aeons Torn"); // Creature {15} 15/15
+        
+        // When you cast Conduit of Ruin, you may search your library for a colorless creature card with converted mana cost 7 or greater, then shuffle your library and put that card on top of it.
+        // The first creature spell you cast each turn costs {2} less to cast.
+        addCard(Zone.HAND, playerA, "Conduit of Ruin"); // Creature {6} 5/5
+        addCard(Zone.BATTLEFIELD, playerA, "Plains", 13);
+        
+        castSpell(1, PhaseStep.PRECOMBAT_MAIN, playerA, "Conduit of Ruin");
+        setChoice(playerA, "Yes"); // When you cast this spell, you may search...
+        addTarget(playerA, "Emrakul, the Aeons Torn");
+        
+        setStopAt(3, PhaseStep.DRAW);
+
+        execute();
+        
+        assertLibraryCount(playerA, "Emrakul, the Aeons Torn", 0);
+        assertHandCount(playerA, "Emrakul, the Aeons Torn", 1);
+        
+        castSpell(3, PhaseStep.PRECOMBAT_MAIN, playerA, "Emrakul, the Aeons Torn");
+        
+        setStopAt(3, PhaseStep.BEGIN_COMBAT);
+        execute();
+
+        assertAllCommandsUsed();
+        
+        assertPermanentCount(playerA, "Conduit of Ruin", 1);
+        assertPermanentCount(playerA, "Emrakul, the Aeons Torn", 1);
+    }
+}
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