Spiritus is a class of Transmutations and is practised by those who follow or once followed the Argentum Refinement. With these abilities, a Promethean can blend in, study, and manipulate other supernatural creatures such as vampires, werewolves, mages, spirits and ghosts. In each case where a (Material) is mentioned in the name of the ability, the Material is one appropriate to the supernatural creature's weakness. Likewise, where (Type) is seen, the Promethean will usually take on the characteristics of a chosen supernatural.