I stood on the stairs to WK after Pontifex gained some weight, which made his Timestops useless since he couldn't reach me. I then pulled the golems and Mordy swords Ira'kiou'dneg summoned up the stairs to fight or otherwise kill, then fought the dragon at the foot once he was done summoning and casting protections on himself.
It means he couldn't DimDoor to my PC, since he won't fit on the stairs, and that my party could retreat anytime we wanted to heal and buff before returning to the fray. It also meant that when my tank berserked due to the Lillith amulet, I could pull everyone who wasn't berserked away from him until he calmed down and meanwhile he would continue beating on the dragon.
Incidentally, I haven't looked at the item itself yet, but am I hearing Minsc all the time because of the amulet? He is in my party and my game is heavily modified so I wasn't sure he wasn't just more screwy than usual.
Just thought I would let you know so you can change it if you don't want it happening in future.