I guess that I just like cheese and reading up on battles :0. What I did was just Triple Project Imag'ed with Tashia and had a Protection from Magic scroll in the Quick Item slot. *BAM* Sendai and Abazigal get taken down a couple of notches. Time Stop, Focus, slice up some Bhaalspawn. Kill Melissan. The End

I beat it on my first try, but I had a lot of help from reading Trent Gouldings Ascension log. (Ex: Which enemies were where, etc. But, it didn't help that the rat-bastard Sarevok betrayed me. I thought that I was going to face a Dragon, though, not the human form of Abazigal.)
*edit* When I read the Ascension log, it was five months ago, when I was still a purist and believed in a mod-less BG2. I thought the Ascension battle was insane, so I wanted proof that it was possible to beat it. Then, I saw the light...
[!--EDIT|Assassin|Mar 5 2003, 12:49 AM--]