Mantax was a warlord from Bionicle who attempted to take control of the Universe from Mata Nui with five other warlords. The Barraki were foiled by Makuta Teridax, who obliterated their armies and had Botar imprison them in The Pit. Years later, Teridax cast Mata Nui into a deep coma and caused the Great Cataclysm, which damaged The Pit and allowed Mantax and the other Barraki to escape into the ocean, where the water's mutagen mutated Mantax and the other warlords.


Mantax is similar to a manta ray.