You see a shard of corruption.
Notes
A big and resistant creature, its stone skin protects it from almost every element.
Abilities
Damage Taken From Elements
Physical 
Death
Holy
Ice
Fire
Energy
Earth
Drown
Location
Farmine Mine
Behaviour
Does not run when in low health.
Strategy
Paladins and Mages should stay at a distance and shoot. Sorcerers should use Ice Strike along with an energy-based wand (preferably Wand of Starstorm); Druids should do the same, but with a Hailstorm Rod. Keep an eye on your hp bar as it uses its distance attack frequently.