Alright, here's my situation... I've already beat the dragon, and now, i'm fighting RikuII (SPOILER) When you find out he's being controlled by Ansem. And i just can't beat him I've tried like millions of times!

I have Cura, and Arora on Short Cut, and i'm at level 45... :S i dunno if that's bad or not lol, and i stocked up a bunch of Elixers and Ethers, the problem is, i beat him up pretty good and then when i'm just about to kill him he uses this attack (the one where he attacks like the whole room) and kills me.

Can anybody help me?
Thanks!