I was going to ask you how to beat The Guardian, but I found out a super-LULZ way: Just sneak past him until you're on top of the stairs, fire off a pot-shot to lure him onto the lava grate, then trigger any of the buttons. Insta-death.
In the outdoor Immaculate battle by the big door, the wolves are not glitching. They become neutral once you kill their wolfmaster and apparently are programmed to hang around their fallen master out-of-combat. You probably re-aggroed them with some AOE. I wonder if they'd actually fight on your side if the Immaculates aggro them with AOE...never tried it. Also, Jahan was at about 2/3 health when you started the battle which contributed to his near-demise. :)