A Visceromancer is a a member of a unique sect of surgeons, genetisists and flesh molders among the forces of Chaos. The Brotherhood of Visceromancers draws it's membership primarily from a large number of Space Marine Apothecaries that turned to Chaos. These Chaos Apothecaries chose to join the Brotherhood in order to further their skills in the arts of medicine and body modification. Since it's formation the Brotherhood has gathered many of the Apothecaries among the Chaos Warbands into membership, and its influence has grown as a result. Visceromancers can be found among numerous Warbands that they take as clients, and many Arch-Heretics and Chaos Lords seek the skills of a Visceromancer.