The original Pyroclasts were created by Inquisitor Malachai Heritor of the Ordo Xenos in 643.M40, as the last measure to end xeno infestations through holy fire when everything else had failed. Their success led to their adoption by the Ordo Malleus.
The first recorded use of the Pyroclasts was the Cleansing of Dreah. After discovering that the grain tithe of the Agri-World had been tainted by Chaos, Inquisitor Helden Karros equipped three Imperial Guard regiments with flamers and ordered them to cleanse all vegetation within a thousand kilometers radius of the original infection site.
Afterwards, the Calixian Ordo Malleus created a training bastion on the Shrine World of Reshia for inquisitorial agents to specialize in the use of Incinerators. Most trainees are experienced guardsmen possessing an instinctive understanding of the nature of fire, cultivated into a religious love and faith during a six months training period before being returned to their inquisitors as fully fledged Pyroclasts.
|Inquisitors||Lord Inquisitor • Ordo Hereticus Inquisitor • Ordo Malleus Inquisitor • Ordo Xenos Inquisitor|
|Retinue||Acolyte • Arco-Flagellant • Astropath • Autosavant • Banisher • Cherubim • Chiurgeon • Crusader • Daemonhost • Death Cult Assassin • Interrogator • Jokaero Weaponsmith • Hierophant • Lexmechanic • Mystic • Sage • Sanctioned Psyker • Servo-skull • Servitor • Sisters Dialogous • Sisters Hospitaller • Pariah • Penitent • Priest • Torturer • Veteran Guardsman • Warp-Seer|
|Other Troops||Inquisitorial Stormtroopers • Inquisitorial Pyroclasts • Deathwatch • Grey Knights • Sisters of Battle • Callidus Assassin • Culexus Assassin • Eversor Assassin • Vindicare Assassin|
|Vehicles||Chimera • Land Raider • Land Raider Crusader • Land Raider Redeemer • Razorback • Rhino • Valkyrie|
|Fleet||Inquisitorial Black Ship|
|Command||Supreme Grand Master • Grand Master • Brother-Captain • Brotherhood Champion • Librarian • Techmarine • Chaplain • Apothecary • Ancient|
|Elites||Paladin Squad • Purifier Squad • Justicars • Dreadnought • Venerable Dreadnought|
|Troops||Terminator Squad • Strike Squad • Interceptor Squad • Purgation Squad|
|Vehicles||Rhino • Razorback • Land Raider • Land Raider Crusader • Land Raider Redeemer • Nemesis Dreadknight|
|Aircraft||Stormraven • Stormtalon • Stormhawk • Thunderhawk|
|Characters||Kaldor Draigo • Castellan Crowe • Voldus • Arvann Stern|