You see Stonecracker.
- HUAHAHA!
Notes
Appeared the first time with Summer Update 2008. He is a random spawn with no announcement.
Stonecracker on Unitera
Stonecrackers Lair for Grizzly Adams Behemoth Task
Part of the Killing in the Name of... Quest. The portal which leads to the boss is upstairs in west tunnel of the deepest floor of Cyclopolis (here).
Abilities
Damage Taken From Elements
Physical 
Death
Holy
Ice
Fire
Energy
Earth
Location
Stonecracker spawns near the stairs which lead to the Behemoth Quest room. It's also possible that it spawns after the level 30 door (as shown in the image) with 3 Behemoths. There were rumours at one time that it dropped Earthborn Titan Armor which appear to be false.
Behaviour
This boss behaves similar to a Behemoth, only with stronger attacks and the ability to heal itself.
Strategy
Fairly easy for a level 80 knight to block.