List of Chaos Space Marine Warbands - M: NameOriginFoundingSummaryMagma HoundsKnights ExcelsiorUnknownThe Magma Hounds are a warband of Chaos Space Marines. They were once a Loyalist Chapter of Space Marines of unknown origin and Founding, known as the Knights Excelsior. They were corrupted after entering the Eye of Terror in 321.M37 as part of the Imperial Abyssal Crusade. During their sojourn into the Eye, the Knights Excelsior found themselves on the Dark Forge World of Temporia, home of the vile Warpsmith Valadrak. While investigating the strange mechanically-constructed world composed of endless manufactoria and machines, they were attacked by strange living Daemon Engines. Outgunned, the Knights Excelsior were forced to make a hasty tactical withdrawal, fighting their way back to their dropships. As they attempted to make good their escape, their vessels were attacked by a strange archeotech device that rendered their technology impotent, leaving the Space Marines at the mercy of Temporia's Daemon Engines. When they were last seen, they had been refashioned into the Renegade Magma Hounds.MalefactorsSigilitesUnknownThe Malefactors are a warband of Chaos Space Marines. They were once a Loyalist Chapter of Space Marines of unknown origin and Founding, known as the Sigilites. They were corrupted after entering the Eye of Terror in 321.M37 as part of the Imperial Abyssal Crusade. It is unknown what they endured during their sojourn into the Eye, but by the time they made their way back into realspace, they had become the warband of Chaos Space Marines known as the Malefactors.Mind-EatersThousand SonsUnknownThe Mind-Eaters was a thrallband of the Thousand Sons Traitor Legion led by the Sorcerer Hasophet. Hasophet, the Magister of the thrallband, believed he had received a vision from Tzeentch, the Chaos God of Change, that promised that he would eventually ascend to daemonhood if he completed nine hundred and ninety-nine special rites that would further the Architect of Fate's plans in the mortal realm.Metal ClawIron WarriorsFirst FoundingThe Metal Claw is a Chaos Space Marine warband of the Iron Warriors Traitor Legion.Mouldering ClawDeath GuardFirst FoundingThe Mouldering Claw is a warband or vectorium of the Death Guard Traitor Legion's 1st Plague Company. The Mouldering Claw delight in brutality. They like to advance upon the enemy line as quickly as possible before hacking and bludgeoning them with plague-ridden blades, flails and axes. Even a single cut from one of their toxin-laced blades is certain to cause an agonising death. These are warriors of the 1st Plague Company, fanatically devoted to Typhus' cause, and the diseases they spread bring fresh waves of hideous Plague Zombies staggering into the grim light of battle, pinning the foe amidst groaning masses of undead flesh before the Mouldering Claw close in to finish the job.MurderghostsUnknownUnknownThe Murderghosts are a warband of Khorne Daemonkin Heretic Astartes dedicated to the service of the Blood God. Little is known about the mysterious Murderghosts, save that they are thought to have formed less than a standard century ago and they make extensive use of Raptors in their attacks.