OK, more to try; what I have certainly isn't working. She does have a deathknight; banish doesn't work on it. I haven't tried the aura thing; actually, I thought it only made my own summons follow me). I pretty much tried everything in my bag of tricks. I don't think her bubble can be destroyed at all. I managed a smidgen of damage on her but the bubble was still intact. I don't know if I cleared the wastelands - probably most of it. I'm about half way to the next level upgrade. I have certainly not cleared everything within the black ring dungeon, so maybe that's the ticket. I've never been one to grind and maximize and my builds are not due to reading what others have done so perhaps I'm not specialized enough in magic - most are level 3 with some like meteor strike at level 5. Quite a few are at level 1 like hell spikes. Well, my pyramid is at the door to the dungeon so I guess that's next. Pretty frustrated; might wait until tomorrow.