Omis-Prion

Omis-Prion is a Vigilus-system tomb world on the Nachmund Gauntlet, not Vigilus itself. Necron complexes under the crust drew T'au interest, and the War of Beasts treated it as a neighbouring contested pin with its own OPCM timestamps. Leave Calgar's hive-war on Vigilus; this rock is the silent tombs next door.