[Dace De'Briago]

I actually have a brilliant tactic for defeating him.

Yay me!

SPOILER

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lol. Anyway, I was soloing against Az, and as you know, he is pretty tough to defeat.

So what I did was put a few buff spells on my character and lead him back to the entrance to his cave, as you know, it's not possible to leave.

Then proceed to whack him until he changes into a dragon.

If you do this in the right spot, he gets STUCK in the entrance to his cave, meaning he can't follow you to beat you to death. This allows you to wear him down as and when you choose with summons/cheesy area affect spells/buffed fighters etc etc

Hope that helps. I know you arent soloing, but you could always try and get something similar to work...