From b3510e7f3d7568a096eed80c265f8e9e12b62f6a Mon Sep 17 00:00:00 2001
From: Evan Kranzler <theelk801@gmail.com>
Date: Sat, 12 Jan 2019 17:36:35 -0500
Subject: [PATCH] fixed Hydroid Krasis cast trigger

---
 Mage.Sets/src/mage/cards/h/HydroidKrasis.java | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Mage.Sets/src/mage/cards/h/HydroidKrasis.java b/Mage.Sets/src/mage/cards/h/HydroidKrasis.java
index 4a828084cf1..85012dac512 100644
--- a/Mage.Sets/src/mage/cards/h/HydroidKrasis.java
+++ b/Mage.Sets/src/mage/cards/h/HydroidKrasis.java
@@ -2,6 +2,7 @@ package mage.cards.h;
 
 import mage.MageInt;
 import mage.abilities.Ability;
+import mage.abilities.SpellAbility;
 import mage.abilities.common.EntersBattlefieldAbility;
 import mage.abilities.effects.OneShotEffect;
 import mage.abilities.effects.common.CastSourceTriggeredAbility;
@@ -80,7 +81,11 @@ class HydroidKrasisEffect extends OneShotEffect {
         if (player == null) {
             return false;
         }
-        int halfCost = Math.floorDiv(source.getManaCostsToPay().getX(), 2);
+        Object obj = getValue(CastSourceTriggeredAbility.SOURCE_CAST_SPELL_ABILITY);
+        if (!(obj instanceof SpellAbility)) {
+            return false;
+        }
+        int halfCost = Math.floorDiv(((SpellAbility) obj).getManaCostsToPay().getX(), 2);
         player.drawCards(halfCost, game);
         player.gainLife(halfCost, game, source);
         return true;