Don't know if he and his female assitant Landria (Lvl 60 ^^ Heroic )are questrelated, but ...
This Npc ( which is attackable ) has got 30,5k lifeoints and hits really nasty with his slashing attacks. His poison-dots are intresting as well.
I've been really surprised, when I ( Lvl 70 necromancer ) tryed to take him and his assistant down for fun.
First try 's been a total disaster. :)
Second try I rooted Mandrik from the beginning and first slew Landria.
(She does slashing and cold dmg.)
She an accurate Lvl 62 ^^ mob.
After defeating her it still was a hard fight cause of the surprisingly high amount of HP.