Whew, I got Sephy to like, four HP bars! Thanks a bunch for the Form info, KH-Cloudy. Now I'll go level up the forms to get the more powerful extra abilities.

If I can be more patient, and not jump the gun on items, I know I can beat that pretty mama's boy!! I'll probably also go get more defence increasing armour, if possible, like another power belt.
Although a bit of the problem is me not acting right away, leading to low HP and paranoia, and use of Hi-Potions.

Oh well. I'm pretty sure I'll beat him by today's end, if not tommorow. It's a shame he can only be fought once, but I suppose people will just use him to power-level, like the first game, which is good, I suppose.