Umbra ‘Vesic was a Sangheili rebel who served as a field commander within the Cleansing Blade reformer faction. Previously a Special Operations officer during the Human-Covenant War, he was dismissed from the division for cowardice following the Great Schism and was an early member of the Fallen separatist movement. Disillusioned with his new masters following years of fruitless warfare, Umbra fell in with the “Black Knight of Sanghelios,” Shinsu 'Refum, when the latter broke from the Fallen and created the Cleansing Blade. A cunning officer and tactician, Umbra served as Shinsu’s chief lieutenant during the Cleansing Blade’s early operations. A believer in Sangheili supremacy, Umbra often came into conflict with his commander’s alliances with aliens such as human rebels and Jiralhanae pir