Roaring Blades

The Roaring Blades are a traitor guard regiment dedicated to the Chaos God Slaanesh. They have close ties to the Emperor's Children Traitor Legion, who they served with before, during, and after the Horus Heresy in a similar style to the Spire Guard and the Thousand Sons Traitor Legion. They were originally known as the Righteous Blades before they turned against the Imperium.

History
During the Great Crusade the Righteous Blades were one of the most decorated infantry units within the Imperium. They functioned as vassals to Fulgrim and the Emperor's Children, fighting alongside them on several campaigns. Because of this, the Righteous Blades followed Fulgrim into damnation, pledging their souls to the desires of Slaanesh, renaming themselves the Roaring Blades.