Merge branch 'master' into 'master'

MillAI logic for Rebirth.

See merge request core-developers/forge!2489

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

@@ -38,6 +38,8 @@ public class MillAi extends SpellAbilityAi {
         } else if (aiLogic.equals("LilianaMill")) {
             // Only mill if a "Raise Dead" target is available, in case of control decks with few creatures
             return CardLists.filter(ai.getCardsIn(ZoneType.Graveyard), CardPredicates.Presets.CREATURES).size() >= 1;
+        } else if (aiLogic.equals("Rebirth")) {
+            return ai.getLife() <= 8;
         }
         return true;
     }