Board Thread:Off Topic/@comment-27082610-20161126183941/@comment-24534644-20161203155432

Not to mention the potential Achilles Heel, which is to say that once the body stops producing adrenaline, the Semblance would quickly peter out. So the user would have to gauge both their Aura and physical stamina levels, since the body will stop producing adrenaline if the it becomes too heavily taxed.