- Rudimentary prediction for Insult // Injury double damage effect for the AI (currently done in a way similar to how several other effects are predicted, which is (a) suboptimal - needs to be figured out from the replacement effect itself; (b) needs to be moved out from the Card and Player classes into the AI class, probably ComputerUtilCombat). Feel free to improve.

forge-game/src/main/java/forge/game/card/Card.java

@@ -6053,6 +6053,16 @@ public class Card extends GameEntity implements Comparable<Card> {
             }
         }
 
+        // TODO: improve such that this can be predicted from the replacement effect itself
+        // (+ move this function out into ComputerUtilCombat?)
+        for (Card c : getGame().getCardsIn(ZoneType.Command)) {
+            if (c.getName().equals("Insult Effect")) {
+                if (c.getController().equals(source.getController())) {
+                    restDamage *= 2;
+                }
+            }
+        }
+
         if (getName().equals("Phytohydra")) {
             return 0;
         }

forge-game/src/main/java/forge/game/player/Player.java

@@ -721,6 +721,17 @@ public class Player extends GameEntity implements Comparable<Player> {
                 }
             }
         }
+
+        // TODO: improve such that this can be predicted from the replacement effect itself
+        // (+ move this function out into ComputerUtilCombat?)
+        for (Card c : game.getCardsIn(ZoneType.Command)) {
+            if (c.getName().equals("Insult Effect")) {
+                if (c.getController().equals(source.getController())) {
+                    restDamage *= 2;
+                }
+            }
+        }
+
         return restDamage;
     }