Quote Originally Posted by PuPu View Post
According to this: GameFAQs: Kingdom Hearts II (PS2) Low Level Challenge Guide by CElliotNeal

The lowest level possible to face Sephy is level 34/35; that is, if you aren't playing Final Mix+ on Critical Mode. Also, I think he says that in Anti-Form you get 0 XP. Could be useful for forced battles.
So, I'm there already, huh? It was quick to get there at Level 34.

Can you even tell me what the weakest keyblade is? If not, I doubt that you're telling the truth.
I believe the weakest Keyblade is Sweet Memories (No strength nor magic Boost).