Arcadian Leontus is the Lord Commander Solar of the Astra Militarum, wielding vast armies against apocalyptic invasions, sector-wide insurgencies, and even distant campaigns beyond the Segmentum Solar. A master tactician and peerless scholar of military history, he is guided in his strategic decisions by an entourage of seers, advisors, and priests. On the battlefield, the Lord Solar strikes a figure akin to the heroes of old atop his cybernetic stallion, Konstantin. Levelling his blade at the foe, Leontus bellows orders that see the dutiful soldiers of the Imperial Guard achieve victory after victory.