- Added check for discard cost for TapAi (eg. Stern Constable)

- Added SacMe and DiscardMe flags for Drownyard Temple

forge-ai/src/main/java/forge/ai/ability/TapAi.java

@@ -1,9 +1,11 @@
 package forge.ai.ability;
 
 import forge.ai.ComputerUtil;
+import forge.ai.ComputerUtilCost;
 import forge.ai.SpellAbilityAi;
 import forge.game.ability.AbilityUtils;
 import forge.game.card.Card;
+import forge.game.cost.Cost;
 import forge.game.phase.PhaseHandler;
 import forge.game.phase.PhaseType;
 import forge.game.player.Player;
@@ -37,6 +39,12 @@ public class TapAi extends TapAiBase {
 
         final TargetRestrictions tgt = sa.getTargetRestrictions();
         final Card source = sa.getHostCard();
+        final Cost abCost = sa.getPayCosts();
+        if (abCost != null) {
+            if (!ComputerUtilCost.checkDiscardCost(ai, abCost, source)) {
+                return false;
+            }
+        }
 
         if (tgt == null) {
             final List<Card> defined = AbilityUtils.getDefinedCards(source, sa.getParam("Defined"), sa);

forge-gui/res/cardsfolder/d/drownyard_temple.txt

@@ -4,4 +4,6 @@ Types:Land
 A:AB$ Mana | Cost$ T | Produced$ C | SpellDescription$ Add {C} to your mana pool.
 A:AB$ ChangeZone | Cost$ 3 | Origin$ Graveyard | Destination$ Battlefield | Tapped$ True | ActivationZone$ Graveyard | SpellDescription$ Return CARDNAME from your graveyard to the battlefield tapped.
 SVar:Picture:http://www.wizards.com/global/images/magic/general/drownyard_temple.jpg
+SVar:SacMe:4
+SVar:DiscardMe:3
 Oracle:{T}: Add {C} to your mana pool.\n{3}: Return Drownyard Temple from your graveyard to the battlefield tapped.