They were supposed to help our party? I never saw them. I mean I saw them running to a boat and disappearing is all. rofl
Through dialogue, you can ask for two Seekers to stay back and fight.
I cheesed this fight as well - I positioned my party outside the front gate and just started everything by casting Hail on Alexandar. I then teleported him into the corrupted blood by where the Shriekers were, and stunlocked him. In one playthough, the guy actually healed himself to full when he was nearly dead, so stunlocking him was the only way I could win this. Two magisters didn't bother joining the fight, so I was able to deal with a rogue and a knight.
When the worm appeared, my two Seeker allies ran in to attack, like idiots. So I stayed back and let Gheist and the other magisters fight the worm, with my guys getting caught in the AoE. I brought my party in after Gheist went down. I remember examining the worm, and he had massive resistance to everything except (I think) ice ... I focused him down, and then finished the mage on the platform.
One thing - I believe casting Bless on fire changed fire into holy fire, which helped a ton while fighting Alexandar and the rogue. I cast it on one of my guys that was on fire ... quite serendipitous
