Ok sorry for double post, but here's the issue I'm having.

-Hope and Sazh buff while I heal some

-Light and Sazh go on offensive while Hope heals (if I feel confident, Hope goes on offensive as well)

-At about when the first piece is going down, our buffs start to wear off (or they are being removed, I have no idea, but they're going away) and we naturally begin to take more damage.

But here's the thing- we can't rebuff because the magic bomardment kills the team too quickly. This is 9 times out of 10, one time I got lucky and was able to get to the last stage of the fight before getting killed by Destrudo. I've been doing SOME grinding and it's been sucessful but doesn't seem to make a difference. I'm losing interest in this game quickly because this boss fight keeps destroying me and I don't know what I'm doing wrong.