In the Dungeons & Dragons fantasy role-playing game, the Gathra is an extraplanar Magical Beast. They dwell on Avernus, the first layer of the Nine Hells of Baator. Gathra resemble a blend of boar and bull. They have the body of a huge, black, ugly, fiendish bovine, with a boar-like head. They have an enormous pair of horns which curve inwards on each other, and two lower tusks which stick straight up and give the impression of large, upside-down saber-teeth. Gahtra, being natives of Baator, are lawful evil in alignment. Gathra appeared in the 3rd Edition Fiend Folio.