Firon Dernkal  

I was slaughtering my way through the Neriak guards just for the fun of it, when I encountered this fellow. He /conned indiff and dark blue at level 65. Hits very hard and very fast. Highest hit I saw was 919. He also mana drains every few swings. He has lots of hit points, probably somewhere around 50 or 60k, though I only managed to get him to 65 ish percent before he killed me. Summons.