Energy Hound

The Energy Hound was a canine Rahi species that could track anything or anyone by sensing its unique energy signature. The Order of Mata Nui apparently tamed several of these and gave them to Maxilos and similar guardians in the Pit. Spinax was one such Energy Hound. Makuta in the guise of the robot Makilos used Spinax against Hydraxon who was guardian of the pit.