Fist of the Evechosen
From Age of Sigmar - Lexicanum
The Fist of the Everchosen is a combined army of Archaon's personal vanguard, Slaves to Darkness, Khornate and Tzeentchian forces among many other forces of Chaos. They are Archaon's elite vanguard, bound together by ruthless resolve, summoned whenever he desires a kingdom destroyed.[1]