The Duke of Fathoms is a level 62 elite hydra, and one of the Elemental Nobles of the Abyssal Council. The Cenarion Circle believe that he and and the other three Dukes are the primary force behind the organization of the Twilight's Hammer Cultists in Silithus. The Duke of Fathoms does not appear normally in the standard plane of existence but must be summoned. There are two ways of summoning the Duke: Ranged DPS is valuable, because all those in melee range will be affected by the knockback.