Thanks all for suggestions and such. It's too bad, and a bit annoying to me, that the AI isn't set to do such things such as cast spells and attack.
It would be nice if the AI was smart enough to do things such as attack but, if surrounded by enemies, could cast something like Immolation. The fact that the AI can not simultaneously cast spells and attack seems to make certain spells next to useless (e.g. Hand of Death).
And thanks for the info about Soul Vortex. The manual didn't seem to make it obvious that it is continuous... it actually sounds useful now
