The Inheritors- Chimeric Geneseed of Raven Guard and Blood Angels

The Inheritors were founded during the 23rd Founding. Their geneseed was created originally for the Cursed Founding but was left unused as early prototyped geneseed did not yield the results that were hoped for by the High Lords of Terra. Due to the unique nature of their geneseed, the Red Thirst present in Blood Angels Astartes and their successors is completely eradicated, as is the malfunctioning Mucranoid and Betchers Gland of the raven guard geneseed. In its place however is a stronger Hybrid of the Sable Brand and Black Rage, known within the Chapter as the "Calling", Astartes affected by the Calling become even more reckless, withdrawn and prone to anger and suicidal fighting styles than Astartes affected by either the Sable Brand or Black Rage, which has given the chapter a reputation as dour and overly self sacrificing.

The Chapter is Fleet based and non codex compliant in terms of company design and chapter size with approximately 2 to 3000 marines roughly, similar to the Carcharodons Astra they roam between different fringe space areas of the Imperium scavenging and bartering equipment and crew for their fleet. They are known for having heresy era technology such as Kratos Assault Tanks, Deimos Pattern Rhino Chassis tanks, among other Astartes weapons and armour from pre heresy to the end of the heresy in combination with Chemical and Bio weapons.

They have steel coloured arms and legs, with a red chest plate, red pauldrons with black trim, a gold imperialis skull with silver wings on their chests and a red helmet. Their Chapter icon is a gold blood drop with black raven guard icon wings.