Grey Knights Purifier - Role: Just as the Paladins embody the epitome of the Grey Knights' martial prowess, so the Purifiers demonstrate the best of their strength of purpose and founding principles. Purifiers are selected not for their skill at arms nor the glory of their deeds, but based on the purity of their souls and their single-minded devotion to their sacred purpose.Only mortals who are the most pure of heart and clear of purpose can hope to face the most powerful foes of the Warp. The Purifiers stand apart from the Chapter, a secretive order within a secretive order. They have the sacred duty to maintain the seals and bindings on the Chapter's Daemonic prisoners and deal with the worst the Warp has to offer.In battle, Purifiers can turn their personal purity into a weapon, channelling it with their psychic talents to create an ethereal fire which can literally burn away the souls of their foes and reduce a fully-manifested Daemon to nothing but a memory in a few moments of blazing light and inhuman screams.The Chambers of Purity lie deep below the Grey Knights' fortress-monastery on their Chapter homeworld of Titan in the Sol System, at the entrance to the ancient and shadowy vaults of Mount Anarch. This ensures that the Purifiers guard against the evil that slumbers therein. Only the Chapter's grand masters are permitted to enter these halls unbidden. This edict has proved something of a challenge to Grey Knights neophytes over the centuries.Some Grey Knights initiates whose curiosity leads them astray return to the chambers above following a brutal beating to reinforce the lesson that the Purifiers trust not even their own battle-brothers where some secrets are concerned. Other intruders do not return at all, their fate a mystery.Purifiers are dour and taciturn, and their eyes burn with a black fire that borders on fanaticism. There is neither training regime nor set process by which a Grey Knight can join the ranks of the Purifiers. Membership in the Purifier Order is not granted through skill, valour or a tally of grim deeds soaked in blood. A Grey Knight can serve his Chapter with the highest distinction for Terran centuries without end, yet still this ultimate honour may well be denied him.Purifiers recruit only from those amongst their battle-brothers whose souls are considered to be utterly incorruptible and resistant to the temptations of the Warp -- even by the incorruptible standards of the Grey Knights. So careful is the selection that there are seldom more than a few score Purifiers within the Chapter.Yet never has there been any thought of relaxing the restrictions on induction, lest the sanctity of the order be compromised. Fortunately, the limited numbers of Purifiers have never yet been too few for the task at hand. Whether this is due to some strange quirk of fate or the machinations of some higher power is impossible to say.Perhaps it is part of the natural order of things for there to exist a handful of spiritually unblemished transhuman warriors, whose purpose is to combat Daemons in all their forms and to ensure that the fire of victory for the forces of Order is never extinguished. This is perhaps scant comfort to the Purifiers, who inevitably form the Chapter's spearhead in the dark times of the 41st Millennium. But for the Purifiers, as for all Grey Knights, duty comes before personal survival.Purifiers are divided into squads led by a "Knight of the Flame" (effectively the Purifier equivalent of a Justicar).