Anima can't kill that in one shot. He has over 99,999 health I beleive. Anbyone care to find his status? 99,999 is the max damage anythin' can do.
Easiest boss for me was Sin himself. I'd just summon one of my aeons, fav is Ifrit, an' boost with Haste an' Protect, then wail on him a bit an' heal when health got to yellow. He was too easy. Yu Yevon was perdy damn easy too seein' as how Auot-Life is on you automatically. You just need to find a good way to kill him.
Baby I like it.