Known as the Tyrant of Xana, his background is mysterious but he is known to have held his position at least 30 years before the Horus Heresy. He was also believed to have been a Vodian Magister, serving as the chief enforcer of Cult Mechanicus doctrine on his Forge World. Some time after that, he was cast down and removed from all records until the Xana Incursion. It is believed he may have been held prisoner by Xana's ruling Archmagos. However in the aftermath of the disaster, he may have been accidentally released by Imperial forces and reemerged as a leading figure in the Dark Mechanicum of Xana. It was under Scoria that Xana established the first of its so-called Hell-Forges.