I've noticed that NPCs never cast spells with enrage or whatever that get rid of player control. Not even paralysis or anything really. I was hoping to fix that, but I'm wondering if its even possible.
Potential problems I see are that NPCs pretty much never use offensive magic unless it does damage, and also I'm not sure its even possible for the player to "lose control" and do things like Berserk. Also, I don't know if any NPCs even have the spell (although I could fix that pretty easily with skyproc).

I've gotten them to use a paralysis staff. They cast it 3 times then switch off, randomly switching back.