Something seems to be wrong with this guy. He takes no damage. He keeps conjuring up Undead Warriors and I keep killing them but he takes no damage. I used swords arrows he just stands there and is health meter doesn't move at all. I'm almost lvl 30. So he doesn't effect me. I must be missing something.
There are 3 caves, but AFAIK only 2 generators to disable (at least that was the case in D2:ED).
Try leaving the cave and returning. In D2:ED a couple people had a glitch where certain opponents would not take damage, but leaving them and returning later or going to a different area and returning would generally resolve the problem.
i got a question. in the room with the 2nd generator. where is the key for the chest in there? i found the key in the coffin for the other one but not that one.
It is in the bottom cave. Straight ahead, once you get to the T intersection, check out the grate on the wall you are facing, off to the left a bit, IIRC.