Well I did as i always do it seems..
Cloudkill and monster summoning, smite evil (hehehe works pretty good here), Alot of dispelling arrows, the few you have during the game.. Really few, worth saving for this one.
Used that daystar ray, protection from evil, that one that works on netherworld creatures too..
Mm, a yes, Vorpal sword..
Carsomyr and alot of potions and keeping my poor mages and clerics out of the fight.. Alot of fireshield and imp invisbility.. In the end, only my main character stood standing..alone.. a 7th level assasin 21 lvl fighter.. OK, XP cheat I know..
Last time though I noticed that If you can get it off, disintegrate is a pretty cool spell!!
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WOLF WINS EVERY FIGHT BUT ONE, AND IN THAT ONE, HE DIES