Rhorkasa
From Warhammer 40k - Lexicanum
The Rhorkasa were semi-corporeal spirit-leaches, that were targeted by the Deathwatch forces of Praefex Venatoris.[1]
To aid them against the Xenos, the Watch Fortress developed specialized bolt rounds, known as Magnatronic Cryoshells. These were highly effective and the Rhorkasa have not been seen in over a millennium, leading Praefex Venatoris' successive Watch Masters to believe they are extinct. Yet, while the Magnatronic Cryoshells have limited use on other species, the Watch Fortress still maintains large stores of the bolt rounds.[1]
Sources
- 1: Codex: Deathwatch (9th Edition), pg. 13 - Tools of the Alien Hunter