Regeneration Rework:

- Regenerate or RegenerateAll does create an Effect
in Command which does replace Destroy if possible
- Trigger Regenerated will be added to the Effect
if something does care about "regenerated that way"
- new Regeneration Api is the internal effect
that does handle the actual regeneration
- ReplaceDestroy has Section to handle if Regeneration is possible
- CardShields are removed with the option in PlayerController

forge-ai/src/main/java/forge/ai/PlayerControllerAi.java

@@ -1,6 +1,6 @@
 package forge.ai;
 
-import com.esotericsoftware.minlog.Log;
+//import com.esotericsoftware.minlog.Log;
 import com.google.common.base.Predicate;
 import com.google.common.base.Predicates;
 import com.google.common.collect.Iterables;
@@ -398,7 +398,7 @@ public class PlayerControllerAi extends PlayerController {
         if (StringUtils.isBlank(chosen) && !validTypes.isEmpty())
         {
             chosen = validTypes.get(0);
-            Log.warn("AI has no idea how to choose " + kindOfType +", defaulting to 1st element: chosen");
+            //Log.warn("AI has no idea how to choose " + kindOfType +", defaulting to 1st element: chosen");
         }
         game.getAction().nofityOfValue(sa, player, chosen, player);
         return chosen;
@@ -866,11 +866,6 @@ public class PlayerControllerAi extends PlayerController {
         return brains.getBooleanProperty(AiProps.CHEAT_WITH_MANA_ON_SHUFFLE) ? brains.cheatShuffle(list) : list;
     }
 
-	@Override
-	public CardShields chooseRegenerationShield(Card c) {
-		return Iterables.getFirst(c.getShields(), null);
-	}
-
     @Override
     public List<PaperCard> chooseCardsYouWonToAddToDeck(List<PaperCard> losses) {
         // TODO AI takes all by default

forge-ai/src/main/java/forge/ai/SpellApiToAi.java

@@ -117,6 +117,7 @@ public enum SpellApiToAi {
             .put(ApiType.RearrangeTopOfLibrary, RearrangeTopOfLibraryAi.class)
             .put(ApiType.Regenerate, RegenerateAi.class)
             .put(ApiType.RegenerateAll, RegenerateAllAi.class)
+            .put(ApiType.Regeneration, AlwaysPlayAi.class)
             .put(ApiType.RemoveCounter, CountersRemoveAi.class)
             .put(ApiType.RemoveCounterAll, CannotPlayAi.class)
             .put(ApiType.RemoveFromCombat, RemoveFromCombatAi.class)