Brotherhood of the Obsidian Serpent
The Brotherhood of the Obsidian Serpent was a White Scars Brotherhood during the Horus Heresy and they were led by the Praetor Zargan Khan. The Battle of the Kalium Gate, was among the campaigns the Brotherhood took part in, while under his command.[1]
Sources
- 1: Warhammer Community: New White Scars and Emperor’s Children Units Clash in this Free Horus Heresy Mission (Posted on 16/03/2022) - The Battle for Kalium Gate PDF, pg. 4 (last accessed 17th March 2022)