The Doom Knight (Scientific name: Territo Equitatus, Latin for "The Terrifying Cavalry") is a skilled fighter who deals melee fish-to-fish combat. Doom Knights are Penghis Khan's worst rivals, since he believes that he alone is the only one worthy to wield a mullet. Their armor is composed of highly concentrated Ditto, with a mixture of Doom Weeds, which make the armor very tough and hard to pierce. They are confirmed to be a Penguin, since their beak is usually visible from their visors. They wear a black armor, with red strikings. They are a merciless race, that take pleasure in seeing other things suffer. These fish-wielding knights of destruction, along with the Abyss Knights, are Darktan's elite strike force.