My Nightmare Sun Paladin got up to Vor Armory last night (and the drops were garbage

). When fighting Warmaster Gnarg, I hit him a few times, got him to around 60% health or so, and then the text log said something along the lines of "Warmaster Gnarg dies when its frenzy ends" followed by "You feel a surge of power as a powerful creature falls nearby", and he was dead and I looted the stuff.
I think whatever the fix you put in for the Murderblade didn't quiiiiite work (and makes me very very glad I decided not to use it after I found it

).