The Order of the Flame
From Solium Infernum Wiki
Description
All demons, sub-demons, devils, spirits, pixies, or any maligned forces derived from the aforementioned list will be here-unto required fourteen score decades of service within the Order of the Flame for actions against, or deemed misappropriate by, the Fiend(s) they serve. Servitude will result in the loss of physical or metaphysical form as well as powers granted before-hand through any and all fashion. In place, a servant will be granted the capacity to carry fire from the river Phlegethon and they will wield such power against the enemies of their respective Peer. --From “A Spiritual Handbook and Practicing Guide to the Afterlife”