I have been stuck on this bit for a year now (Even through I havent played it in months and I have finished many other Square Enix titles). It is on Mount Gagazet when you have to fight Seymour. Regardless of how many different tactics and methods I try I still can't beat him so if you have time to spare can you please post some good tactics so I can finally beat the game .

My current party is Lulu, Yuna and Tidus

Thank You Very Much

By the way, I haven't been bothered to create a new file but althrough I have started trying again if it is not possible I might as well start again.