Born into a small, cult-like tribe to a proletarian pair, Erastus quickly became a serf to the higher ranking members. The pack worshipped the sun, who they believed was a deity named Raas. The faction itself was a branch from the Shrine of Okysus, where the fundamentalists of the religion of Raas came from. However, a woman dubbed Hosannah the Heretic had splintered the faith, and one of these resulting factions became a wandering tribe of exorcists who believed they were charged with the holy duty of purging evil from the world.

While exorcisms were reserved only for the most experienced of priests, the younger generations were allowed to observe and learn. Erastus, although only a lowly thrall, studied dutifully under his master and was entirely devout to the faith. This faith was then put to the test when disease suddenly spread throughout the cult and dramatically culled their numbers. The source of the scourge remains unknown, however Erastus escaped, believing himself favoured by his God who saw fit to spare him.

He now seeks to continue the traditions of his pack and serve under the guiding light of Raas.