Either 1 HP or to 1 HP (weakspots only) (Rule Breaker)
TURN ATK (LVL5)
160%x (varies) (beams)
Medea works in mysterious ways. Rule Breaker is completely useless if there is at less than one enemy with a weakspot. Bosses with high HP can even succumb to this attack, but hey, this is probability. On TURN is a fairly good show-lights to look at but it won't do that much from afar.