We have updated the Battle response to include the Attack Boost Slider ONLY if you attacked using it. This will allow you to quickly carry over Attack Boosts to the same player again if you choose. Also to note, when making change to the slider they are reflected on the slider below. Previously it was not clear enough to the player if their Attack Boost was being applied or not, which may have resulted in them loosing a battle. This should address that confusion.
