Lord of Change - Notable Lords of Change: Aetaos'rau'keres, Slayer of SoulsKairos Fateweaver, Oracle of TzeentchIx'thar'ganix, Slayer of DestiniesM'Kachen - M'Kachen commanded the Cult of the Red Talon on Antraxes in 855.M41. Brother-Captain Arvann Stern of the Grey Knights led the counterattack. The mighty M'Kachen was defeated, banished screaming back into the Warp by Stern himself -- a formidable feat normally. M'Kachen vowed to devour the mortal soul of his vanquisher.M'katchnar - M'katchnar led the Host Iridescent of Tzeentchian Daemons against the Fortress World of Cadia during the climax of Abaddon the Despoiler's 13th Black Crusade in 999.M41.Malfallax - Malfallax was the daemonic mastermind behind the manipulation and corruption of the Space Marine Arkio, all part of a grand scheme intended to plunge the Blood Angels Chapter into a civil war that would result in their inevitable destruction. His scheme was foiled by the actions of his brother Rafen, who was also a member of the Blood Angels.Marabas - Once active in the Calixis Sector, Marabas' machinations helped to oppose the Angevin Crusade that initially brought the sector under the control of the Imperium. Eventually, the Inquisition moved against Marabas on the world of Malfi and was able to banish him back to the Warp.Sar'tir - Sar'tir is a Lord of Change who rules one of the most infamous planets of the Cat's Cradle, a region of space affected by Warp currents and tendrils of the raw Immaterium seeping forth from the boundary of the Inner Ring of the Screaming Vortex.Skra'Kalichaust The SchemerShim'dre'lex'kazar - Shim'dre'lex'kazar is an Exalted Lord of Change who is the commander of the Pyroclastic Conclave, a daemonic legion in service to Tzeentch. The Pyroclastic Conclave is a so-called Conflagration Legion, a legion dedicated to fiery destruction and centred around formations of Flamers of Tzeentch, capable of wielding the most powerful of Warp-flames. It was one of the many Daemon legions deployed to the Stygius Sector by the Architect of Fate in the aftermath of the Great Rift's birth, and played a critical role in the siege of the world of Mordian. As it entered battle with the beleaguered Imperial defenders of that world, it was composed of nine different hosts.Tarkh'ax - Tarkh'ax manufactured a conflict between the Imperium and the T'au on the world of Dolumar IV after corrupting the Imperial Commander of that world.Tyrant of Blueflame - After the 13th Black Crusade and the fall of Cadia in 999.M41, the Cardinal World of Ophelia VII was caught within the newly-formed Great Rift that divided the galaxy in twain and that planet sacred to the Imperial Cult was exposed to invasion from Daemons. The planet was enslaved by the Greater Daemon known as the Tyrant of Blueflame, a Lord of Change in service to Tzeentch. Ophelia VII was freed from the clutches of Chaos by the resurrected Primarch Roboute Guilliman's Indomitus Crusade and the forces of the Black Templars Chapter. However the Tyrant himself escaped Imperial justice.Keriath the Shrouded - Keriath the Shrouded was the Lord of Change whose daemonic incursion had taken over the world of Totem IV. The Human colonists of the Totem System had long prided themselves on their independent spirit, and by the time they raised the alarm that they were under attack, the invasion led by Keriath the Shrouded was already well advanced. The Exorcists Chapter were first to respond, and upon landing on the cardinal planet Totem IV, they were immediately beset by a huge host of Tzeentchian Warp-spawn. Though these eldritch horrors had the numbers to overwhelm the Astartes, the Exorcists' resilience of spirit was formidable even by the measure of Space Marines. Whether by some quirk of genetics or the invisible will of the Emperor Himself, they found themselves able to overcome the corrupting touch of sorcerers and Daemons in situations others would deem hopeless. So it was on Totem IV, as the Exorcists advanced boldly through the planet's blasted cityscapes, taking considerable physical damage but never yielding to the assaults their twisted foes made on their minds. Angered by the Exorcists' strange resistance to the mutagenic gifts of Tzeentch, Keriath the Shrouded sought out their leader -- Chapter Master Enoch Trismegistus -- and hurled his entire psychic essence into the stoic Space Marine's mind. Even the heightened resolve of the Exorcists was no defence against such a powerful entity, and the Chapter Master succumbed to the possession. Yet Keriath's victory was not complete; though the Daemon spoke through his host's mouth and did much damage to the Exorcists' position, internally Trismegistus battled on, fighting a desperate battle of wills against the Daemon and putting its own psychic defences to the test. While this ordeal took a grave toll on the Chapter Master's psyche, it gifted him with profound insights into the weaknesses of his daemonic foe and awoke a measure of his own latent psychic ability. In a feat of immense mental strength, he reached out to the mind of Chief Librarian Goetos, and together the two Exorcists drew out Keriath and banished him from realspace. The consequences of this episode were momentous for both Trismegistus and his Chapter. Unknown to the Exorcists, a Radical Inquisitorial sect known as the Plutonians had already developed suspicions concerning the Chapter's unusual spiritual resilience and had embedded an informant in a menial position within the Chapter Command. When this spy reported on Trismegistus' daemonic possession, the Plutonians acted swiftly, asserting their authority as Ordo Malleus agents to relieve the Chapter Master of command and establish purpose-built quarters on the Chapter homeworld of Banish. Here Trismegistus was interrogated relentlessly. Only after many solar months was the Space Marine absolved and reinstated as master of his brethren. This was only the beginning, however. In the course of their interrogations, the Plutonians had laid out to Trismegistus their own Radical theories concerning daemonic possession and how its controlled use might be a paradoxical weapon in the war against Chaos. Perhaps they broke their silence out of vanity, expecting the Chapter Master to face the flames of oblivion soon enough. But Trismegistus had drunk of Keriath the Shrouded's vast intellect and realised the warped genius of the Inquisitors' plan. Once his purity had been proven beyond doubt, he made his own radical proposal to the Plutonians, pledging his incorruptible brethren as partners in their cause. Acting in utmost secrecy, the Plutonians therefore remained on Banish permanently to oversee a programme that would be met with outrage if known to the wider Imperium. Entering a forbidding facility known as the Halls of Tempering, each new Exorcists recruit -- and each compliant existing Astartes warrior -- would be subjected to daemonic possession like Trismegistus had been, albeit by entities of much lesser power and under tightly-controlled conditions. After a period of intense monitoring and scrutiny, the Inquisitors would then drive out the Daemon and return the victim to the care of the Chapter for a further phase of recovery and reflection. So began a unique Chapter initiation ritual that continues to this day.