So I've even got the walkthrough for this game, mind you its not helping to much. Stayed up all last night trying to beat this one boss, pain in the butt he is.

Anyway I've just got all my six characters and can switch battle teams! (yay!), but following the instructions of the book I kept my team as:
Fang, Lightning and Hope.
Now I've nearly copmleted all the possible crystarium abilites and such for each character. Lets say there is a max of 10 HP,MP or other things in the crystarium not completed.

Beating the armour is easy! Do that in a few minutes the problem is the main tank, I can survive his nasty attack Destrudo or whatever it is. Now I thought being smart I could just not stagger him and he would never do that attack on me, HA I was wrong after a while he just does it.

So I've managed to survive these nasty attacks then he puts DOOM on me, and i'm stuffed.....lol I've tried for a good few hours and wondering if anyone has got any good techniques they used to beat him?
Cheers