Banshee Stone
The Banshee Stone was a powerful Chaos artefact of great disruptive ability[1] that resembled a massive shard of crystal[2a] the size of a boarding torpedo[2b]. It was once embedded in the throne room of a Slaaneshi Daemon Prince, but when this Prince foolishly thought to oppose Abaddon, the great Chaos Lord took the mighty Stone from his possession.[1]
During the Diamor Campaign, the Banshee Stone was used by the Black Legion Sorcerer Lord of Tzeentch, Xorphas, to disrupt the wards of the Daemonic cage located on the planet of Amethal. Xorphas performed a long and complicated ritual, fighting with the Imperial forces on the planet and in the Diamor System to destroy the cage and open a new system-wide Warp Rift there. Though he didn't complete the ritual, the damage to the Daemon cage was so heavy that even the destruction of the Banshee Stone by Blood Angels Librarian Asmasael couldn't stop the disruption of the Daemon cage.[1]
Sources
- 1: Black Crusade: Traitor's Hate, pgs. 97-100
- 2: Black Crusade: Angel's Blade
