The Corpus Mymir was a type of psychically-empowered Servo-skull employed by Loyalist Mechanicum and Dark Mechanicum forces during the later years of the Horus Heresy.
One among many of the innovations of Zhao-Arkhad that saw that Forge World's censure by the orthodox Mechanicum authorities of Mars, the Corpus Mymir was a psychically active Servo-skull. Contained within the drone, the brain of a psyker was kept at a basic level of activity through a combination of drugs and electro-charge implants, allowing it to maintain some basic telepathic and divinatory functions.
Before the removal and implantation of the brain, the donor, who was often forcibly selected from the highly psychically active population of the moons of Zhao-Arkhad, received extensive mimetic conditioning and hypno-therapy, fixating it upon a simple auto-suggestive phrase. Repetition of this phrase by an authorised operator triggered the subconscious manifestation of simple psychic phenomena by the Servo-skull.
The fact that these devices, often prone to catastrophic failure, became commonplace on the battlefields of the southern Imperium during the savage inter-Forge wars of the late Horus Heresy speaks as much of the desperation of the combatants as it does to the efficacy of the weapon.
Sources[]
- The Horus Heresy - Book Eight: Malevolence (Forge World Series) by Neil Wylie and Anuj Malhotra, pp. 300, 303