He is a noble who resided in the City of Celtor before the Great Drowning. In appearance, the Duke is a Celtor. He wears a Slate Aristocrat Coat over the Eager Tradesman starter outfit with Eyeglasses. He also has a Resonance by his side that allows him to create and control Rock Golems, although it is never visibly used during the boss fight. The Duke of Erisia is a martial arts user and is specialized in the Legion Kata style. Alongside his martial attacks, he wields extremely powerful and exclusive Galebreathe mantras.