Final Fantasy Revanant Wings

I'm up to the mission where you have to take down Chaos, i struggle against him abit, but when i kill him, half of my espers are dead, and my heroes are dead aswell, then the Judge of Wings appear, and i can't kill her..Any tips?
Post Merge: [time]1244607403[/time]
Bump?

Umm,
I'm haven't reach that mission yet..
But,try go search for a walkthrough at www.gamefaq.com

i have read it some where you just send loads of your espers and capture all the gates.When Mydia comes you just send her some flying espers.