my stratagy was (minde you I had an action-replay powerd disc to help me ) was to eqip each person with an Iron Duke and a ....sorry I forget the name but it gives you Auto-wall and it starts with an A. with these trema did 59hp with punches and kicks, and 2000hp with meteor, and 500hp with demi meaning that you would last a looong time. my characters were Pain:sameri attack-fire works=9999hp

Yuna:gunner attack-tableturner=7846-9999hp

Rikku:sameri attack-fire works=9999hp