To play this, you need a Dark Neopet. When you play this card, move all Neopets in play to this arena. When this Villain loses a contest, untap all its rivals and the player who defeated it moves each rival to the arena of his or her choice. (He or she doesn't have to move them all to the same arena)
"Xantan the Foul glares at you as you approach, hated burning in his sunken eyes."