Quote Originally Posted by Darkswordofchaos View Post
does his difficulty change at 99?
Yeah, he gains an additional 30,000HP or something like that, and I know the party's levels effect Sephiroth's difficulty in some other way but I don't remember if it was just HP or not.

And I like blackmage_nuke's idea.]\

edit: looked up for more accurate stats

+30,000 HP, 2 Att, 20 Def, 5 MAtk, 16 MDef per character at level 99
+80,000 HP if Knights of Round is cast on Jenova