I'll take the liberty to initiate the All Out attack in my post then.
Ding! Ding! Ding! @Zendrelax You've hit it's weakness! Double the damage and the boss is now down. All-Out Attack? I vote yes.
EDIT: Actually, can anyone answer this cause I can't remember: does performing an All-Out Attack mean that others can't have their turns?
Heads up: I'll make a post tonight if Hex or Bleu doesn't show.
