A monstrous, serpentine creature, Kastraliss is one of the servants of the Darkest Faerie featured in the video game. Not much of him is shown around the Neopets site otherwise, though in the comics of the Defenders of Neopia, it seems he can be summoned by a small, green statue. In the Darkest Faerie game, he was the cause of the sickness that the swampland village of Bogshot was experiencing. Tor and Roberta defeated him, and gained the black bogberries, the cure for the illness. 1000 years before the time of the game, he was defeated by the Altador council, and fled to Bogshot.