From Lexicanum

Devram Korda, also known as the Tyrant of Sarora, is a Chaos Lord of the Black Legion and one of the four Chosen of Abaddon. He is seemingly a devotee of Slaanesh.

The Tyrant of Sarora

Korda became known for his heinous actions on Sarora. There, he distilled the life essence of the citizens of the planet's largest hive for a single vial of elixir, which made him virtually invincible. Following that, he conquered the entire system and ruled it with an iron fist, distilling more elixirs from the hives under his dominion until he was toppled by rival Chaos Space Marines from the Emperor's Children.¹

The Heart of Chaos

At the beginning of his 13th Black Crusade, Abaddon send Korda and his fellow Chosen on a quest to find and retrieve the mystical "Heart of Chaos", an artefact said to exist at the very centre of the Eye of Terror. Somehow Imperial agents found out about this mission and send an Execution Force after the Chosen of Abaddon. Korda himself was initially declared the primary target.¹ Despite this, he overcame all hurdles on his journey and successfully returned in the latter days of the war. Together with his peer, the sorcerer Ygethmor, Korda handed the Heart of Chaos over to his master, bringing Abaddon's plans for it closer to fruition.²

Sources

• ¹:Codex: Chaos Space Marines (3rd Edition, 2nd Codex), p.10
• ²:UK WD287: Death by a Thousand Cuts, p.36