After 6 successful tries with only 1 death, I came across them today for the first time. Never saw them on previous runs inside the maze.
-Corpse camp (they don't move back)
-Transfer aggro to other regular inhabitants
-Max hit just under 1200
-Exploded on me upon death for 3500 (don't know what kind of spell shield
I have though exactly, so 4000 may be correct)
-unlike other maze inhabitants, they also don't seem to be able to loose aggro when the get caught on a corner
And they seem to have a timer after they are damaged and maintain aggro that determines when they explode (as a monk could easily FD them off without exploding)
ttfn