How can you beat Sephiroth on Kingdom hearts two?

YOU NEED TO BE ALMOST AT LEVEL 76. YOU CAN USE THE DECESIVE PUMPKIN OR THE OBLIVION. FIRS PUT GUARD AND THEN ATTACK WITH ALL YOU HAVE. USE QUICKE RUN WHEN HE USE THE FIRE PILAR AND THEN TRY TU JUMP HIGH AND HIT WHEN HE USE SIEN HEARTLESS ANGEL. WHEN HE START GETIN IN FREACK STATUS PUT REFEJA AND THATS ALL.
jus watch da video right hear http://www.youtube.com/watch?v=gGYT5n6FD80