man, Yu-yevon is a big letdown. I got Auron's, Tidus' and Yuna's celestial wepons powered up completely, only to find yu-yevon is a wimp and can be killed with zombie and life. it wasn't even close to as hard as when you face seymour the third time (the one where he uses that thing to zombify you and he kills you with life). now THAT was a hard boss.