Amongst all of the Stormhosts, none are more vaunted than the Hammers of Sigmar. In the shadow of the Nomad City, the mettle of the Stormbound is tested the battle to sanctify the Crucible of Blood, a gateway to Chaos and madness. Within the ranks of the Stormcast Eternals, there is one who is greater than all others. He is the Celestant-Prime. For centuries he slumbered, until the great hammer of Sigmar, Ghal Maraz, was returned. But a warrior born must still be tempered, and so unto the swamps of Krahl does Sigmar cast his scion to destroy a powerful creature called the Prismatic King.