I very briefly attempted to use golem(playing for like 15 minutes this morning). I think with a combonation of stone curse and golem I can get him down, assuming he can be stone cursed. If not, I'll just have to get a bunch of scrolls of golem(I still don't have the spell, and I'm on level 13 in nightmare difficulty, level 29.)

I'm only lacking a few spells now. I'm missing one from page one right below Heal, which I think is Heal Other which you can't get in single player, and I'm missing one on either page 2 or 3, can't remember. And I've only got Blood Star and Bone Spirit on page 4, but I don't think there's much more that you get on page 4.