Wednesday, 31 December 2014
The Mor Deythan were elite infantry of the Raven Guard during the Great Crusade and Horus Heresy. Informally known as 'Shadow Masters', these were a small cadre of infiltration squads within the Legion already well known for their skill in such tactics.
Each is a veteran of the Lycaen Uprising who fought at the side of Corax himself. When the Emperor arrived on Deliverance he judged many of the rebels who had fought alongside his son worthy of transformation into a Space Marine and helped remind Corax of his roots as a revolutionary and freedom fighter.
At the beginning of the Horus Heresy, the Mor Deythan were few in number after eight decades of constant warfare. Most who remained were grizzled veterans who were masters of moving silently through the shadows and attacking at the best opportunity. They utilized a range of specialized equipment. However rumor had it that they possessed the ability of their Primarch's ability of nigh-invisibility.
They utilised a range of weapons and specialised equipment, but there were some that whispered that the Mor Deythan were possessed of a portion of the preternatural skills of their gene-father, the Primarch Corax, including his ability to walk unseen even in full view of the foe. This ability had somehow been passed on to them through the unknowable processes of gene-seed implantation.
Following the bloody events of Istvaan V, in which a large proportion of the Raven Guard Legion were lost, only a few dozen Mor Deythan were left alive. These few specialised elite warriors continued to fight on against the treachery of the Warmaster Horus and his Traitor Legions until the last of their numbers finally fell in service to the Emperor. It is not known if the Mor Deythan still exist as part of the Raven Guard Chapter in the late 41st Millennium.