Corien Sumatris was a mysterious figure, even within his own Chapter. He swiftly rose to prominence as one of Chapter Master Lufgt Huron's honour guard after slaying the Chaos Reaver Lord Scora Pleasuremaw in single combat during the Crusade of Wrath. He later spearheaded the deadly assaults into the nightmare realms of the Flesh-Haunters of the Howling Gyre. Corien Sumatris' bloody reputation helped pave his way up the ranks of the Astral Claws Chapter. Renowned for his fierce savagery and utter contempt for his enemies, by the outbreak of the Badab War he had not only been made Captain of the Astral Claws 2nd Company, but also awarded the wardenship of the world of Piraeus in the Badab Sector.