The Atomantic Pavaise was a highly experimental, carapace-mounted energy shield system that was used by the ancient Deredeo Pattern Dreadnoughts of the Legiones Astartes during the Great Crusade and Horus Heresy era. The Atomantic Pavaise was developed by the Clave Nuathac sub-cult Magos of the Forge World of Anvilus with Zone Mortalis operations in mind, with the idea of turning the Deredeo Dreadnought into a mobile bulwark against the heaviest enemy weapons fire. This reinforced shield increases the Deredeo's own already formidable armour and shielding, and provides protection to nearby friendly units.
- Imperial Armour Index: Forces of the Adeptus Astartes (8th Edition), pg. 29
- The Horus Heresy: Legiones Astartes - Age of Darkness Army List pp. 11, 78-79