Phwoar..
Its between Seymour Flux and Yunalesca..
Actually, took me 3 attempts against Seymour Flux and.. I kinda stopped playing FFX for.. 2 months with Yunalesca!!
Pee-ed me off, that much!! Took me approx. 12 attempts to get through that thing..
That was the day when ''Spare Change'' became my best friend. ;]