The Sacrosanct Chambers are the arcane orders of the Stormcast Eternals, the storm-forged battle-mages who wage war against the magical and spectral threats of the Mortal Realms. Where a Stormhost's warrior chambers meet the enemy blade to blade, its Sacrosanct Chamber answers sorcery with sorcery, defending Sigmar's armies from curses, daemons, and the restless dead.
The Sacrosanct Chambers were created in response to a growing need. As the servants of Death and Chaos unleashed ever more terrible magics upon the realms, Sigmar's smiths forged a new kind of warrior: mystics and spellcasters trained in the celestial arts, from the lantern-bearing Lord-Arcanums to the ghostly, spirit-like beings that fight alongside them. They wield the lightning of Azyr not merely as a weapon but as a science of the soul.
Their role became vital after the Necroquake, when the realms were flooded with predatory endless spells and vengeful ghosts. It falls to the Sacrosanct Chambers to bind and banish these horrors, to shield the living from soul-harvesting sorcery, and to unravel the workings of enemy mages before they can turn the tide of battle. In an age when magic itself has slipped its leash, they are the storm's answer to the darkness, the shield of arcane light raised against a rising tide of unnatural war.