Anathematic Diadem
From Warhammer 40k - Lexicanum
The Anathematic Diadem is a black circlet, that is a relic of the Adeptus Custodes. When worn, it draws a null cloud over the Custodian, which abates any Psykers caught under the relic's squall.[1]
Sources
- 1: Codex: Adeptus Custodes (9th Edition), pg. 83 - Artefacts of the Vaults