Zivon

The Zivon is a large Rahi that lives in the Zone of Darkness and can only be summoned by the Kahgarak's Rhotuka Spinner. It is roughly 40 feet tall and has more than once, devoured most of the Visorak Horde as a victory celebration, because the Zivon only fights to protect its prey, the Visorak. It's spinners cause blindness, deafness, muteness, and numbness. The Zivon's stinger is probably the only object that can penetrate a Tahtorak's armor. This Rahi also has the ability to shoot webbing from its legs to entangle a foe. The only known specimen of Zivon was summoned to the ruined city of Metru Nui by Sidorak shortly after the Great Cataclysm, in an effort to destroy the Toa Hordika once and for all. it was thwarted by the appearance of a Tahtorak and the shapeshifting Rahi named Krahka; during the climax of the battle, a Kahgarak sent a Rhotuka spinner at Tahtorak, but Krahka rammed herself into the Zivon, forcing all three of them to be in physical contact when the spinner struck; as a result, all three were sucked into the Field of Shadow. A thousand years later, Krahka and Tahtorak escaped when Brutaka failed in his attempt to send Axonn into the Field; Zivon's status, however, remains unknown.