All you needed to do was cast zombie on him ;) Young_Charter
I never bothered casting ailments on the later bosses because they'd usually be immune to all of them. Except Evrae Altana, who had zombie by default. I remember killing him with 3 phoenix downs. Best boss battle ever :lol:
Edit: Wow I just caught my mistake. The poll says FINAL bosses. Oops. Guess Seymour wouldn't count.