- Improved checkCreatureSacrificeCost.

res/cardsfolder/m/mountain_titan.txt

@@ -7,6 +7,7 @@ A:AB$ Animate | Cost$ 1 R R | Triggers$ TrigSpellCast | sVars$ TrigPutCounter |
 SVar:TrigSpellCast:Mode$ SpellCast | ValidCard$ Card.Black | ValidActivatingPlayer$ You | Execute$ TrigPutCounter | TriggerZones$ Battlefield | TriggerDescription$ Whenever you cast a black spell, put a +1/+1 counter on CARDNAME.
 SVar:TrigPutCounter:AB$ PutCounter | Cost$ 0 | Defined$ Self | CounterType$ P1P1 | CounterNum$ 1
 SVar:BuffedBy:Card.Black
+SVar:RemAIDeck:True
 SVar:Rarity:Rare
 SVar:Picture:http://www.wizards.com/global/images/magic/general/mountain_titan.jpg
 SetInfo:ICE|Rare|http://magiccards.info/scans/en/ia/377.jpg

src/main/java/forge/card/cost/CostUtil.java

@@ -84,6 +84,17 @@ public class CostUtil {
                 if (sac.getThis() && source.isCreature()) {
                     return false;
                 }
+                final String type = sac.getType();
+
+                if (type.equals("CARDNAME")) {
+                    continue;
+                }
+
+                CardList typeList = AllZone.getComputerPlayer().getCardsIn(Zone.Battlefield);
+                typeList = typeList.getValidCards(type.split(","), source.getController(), source);
+                if (ComputerUtil.getCardPreference(source, "SacCost", typeList) == null) {
+                    return false;
+                }
             }
         }
         return true;