After a certain amount of time has passed, or if Plant Brain takes a total of 533 damage, Blank will join the battle. Alternatively, Blank will arrive when Zidane is KOed or his health bar goes to a HP Critical state. Blank does not appear immediately if the player enters the battle with Zidane knocked out. Plant Brain's Pollen ability can blind the party and limit their physical attacking capabilities, although it will not hamper Steiner'sSword Magic.
Plant Brain's most damaging attack is Thunder that hits the whole party.