I don't care for this message in the battle screen. Especially while hitting someone on the hitlist. It makes the attack button jump up/down on the screen. Just like the "You have Severely Injured XXX" on the other apps. If the message could be in a completely different frame as to not make the screen jump around while in battle, that would be good.
As far as someone that keeps attacking.. Thats the nature of the game. Set counters.. attack back.. but don't limit the attacks.. Battle lists on all apps are already short. If a limit is put in place what would be the fun in that?