You see Mad Technomancer
"I'm going to make them an offer they can't refuse."; "My masterplan cannot fail!"; "Gentlemen, you can't fight here! This is the War Room!"
Notes
New creature discovered in the 8.1 Update
Abilities
Self-Healing, Mana Drain (0-50), magic missile (0-200)
Damage Taken From Elements
Physical 
Death 
Holy 
Ice 
Fire
Energy
Earth
Location
Mad Technomancer Laboratory.
Strategy
block it in a corner and spam it with hits.