From the Lore BookEdit

This huge Golem carries a death magic focus with which it can devastate even the most formidable targets. A cadre of Bone Fiends assaulted the western defenses of the city of Ajeem in the Black Rout, killing three of the Emperor's family in one battle.

A Titan Golem from the Arcanum Urugal. Anticipated release date November 2014.