- Improved UntapAllAi a little, modified AmbushAI flag for Angel of the Dire Hour.

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

@@ -5,6 +5,7 @@ import forge.game.ability.ApiType;
 import forge.game.card.Card;
 import forge.game.card.CardCollectionView;
 import forge.game.card.CardLists;
+import forge.game.card.CardPredicates;
 import forge.game.phase.PhaseType;
 import forge.game.player.Player;
 import forge.game.spellability.AbilitySub;
@@ -35,6 +36,15 @@ public class UntapAllAi extends SpellAbilityAi {
 
     @Override
     protected boolean doTriggerAINoCost(Player aiPlayer, SpellAbility sa, boolean mandatory) {
+        Card source = sa.getHostCard();
+
+        if (sa.hasParam("ValidCards")) {
+            String valid = sa.getParam("ValidCards");
+            CardCollectionView list = CardLists.filter(aiPlayer.getGame().getCardsIn(ZoneType.Battlefield), CardPredicates.Presets.TAPPED);
+            list = CardLists.getValidCards(list, valid.split(","), source.getController(), source, sa);
+            return mandatory || !list.isEmpty();
+        }
+
         return mandatory;
     }
 }

forge-gui/res/cardsfolder/a/angel_of_the_dire_hour.txt

@@ -6,6 +6,6 @@ K:Flash
 K:Flying
 T:Mode$ ChangesZone | ValidCard$ Card.wasCastFromHand+Self | Destination$ Battlefield | Execute$ TrigExile | TriggerDescription$ When CARDNAME enters the battlefield, if you cast it from your hand, exile all attacking creatures.
 SVar:TrigExile:DB$ ChangeZoneAll | ChangeType$ Creature.attacking | Origin$ Battlefield | Destination$ Exile
-SVar:AmbushAI:True
+SVar:AmbushAI:BlockOnly
 SVar:Picture:http://www.wizards.com/global/images/magic/general/angel_of_the_dire_hour.jpg
 Oracle:Flash\nFlying\nWhen Angel of the Dire Hour enters the battlefield, if you cast it from your hand, exile all attacking creatures.