Update DefaultExecutor.cs

Game/AI/DefaultExecutor.cs

@@ -705,7 +705,7 @@ namespace WindBot.Game.AI
                 ClientCard tributeCard = Bot.MonsterZone[j];
                 if (tributeCard == null) continue;
                 // if (tributeCard.GetDefensePower() +400 < Card.Attack)
-                if (tributeCard.Level +1 < Card.Level)
+                if ((tributeCard.Level +1) < Card.Level)
                     tributecount--;
             }
             return tributecount <= 0;