The Arena of Byss was a structure on the planet Byss that was used by the Infinite Empire when they ruled that world. It was used as a site for gladiatorial combat where the Rakata sent their slaves such as their Force Hounds into combat with one another. Within the Arena, combatants fought to the death where they fought for their survival and no mercy was expected amongst challengers. Within these chambers, Xesh who was a rising Force Hound battled the reigning champion Isk in combat. His victory led to Predor Tul'kar's rise in power as Xesh was his servant.