Merc/Solo'd her as a 90 nec. gave her 3 tries. 1st try had silence problems and pets died.2nd the merc an out of mana at 29% and 3rd i let pet engage her where she was and i stayed by the door and fd'd often to avoid agro. i used mindwrack often as i could and sent 90 and 85 swarm pets as often as i could and to let merc med while the swarm pets kept her busy. whole fight took about 45min. her resists were off and on. i accidentally minimized/closed the parser before it was over, but the 2 previous bosses parsed at 6mil hps. so i would guess hers to be around 8-10mil.
solo'd with merc as a 90nec. 1st try merc ran out of mana. 2nd i just kept mind wracking as soon as it was up. i did chain cast 90pet swarm and 85 pet swarm when merc was below 80% mana and let her med while swarm pets tanked her. let pet tank her where she stays and stay by the door and you can avoid the silence. accidentally closed parse before the end, but the other 2 i parsed before her parsed at 6mil hps. took about 45minutes.