The Ashen Empire
Using the powerful magical blood of both chromatic and metallic dragons, the wizards of the Ashen King created Dragonborn, man-made creatures specifically designed for combat. Their draconic ancestry gives them breath weapons and supernatural strength, and some are even said to have leathery wings. Most common folk fear or mistrust dragonborn, seeing them as a reminder that the Emperor has power enough to create his own monstrous army.
Due to their martial training and draconic ancestry, dragonborn favor the Barbarian, Fighter, Monk, and Sorcerer.