Kanohi Dragon

The Kanohi Dragon was an extremely powerful Rahi of which only one specimen has been recorded. It dwelled in Ta-Metru on Metru Nui, and would take flight from the Great Furnace, when the sky would blacken and soot would fall from the sky as the being snaked through the heavens. Toa Lhikan and his group were summoned to Metru Nui by Turaga Dume to fight the beast. They succeeded in driving the creature away to the location from whence it came, but were weakened by the battle. It is unknown where the monster went, maybe if it hadn't left, it would have defeated Makuta.

It is said that the Dragon's skin was lined with Kanohi Masks. It is open to debate whether these were real Great Masks or just imitation to lure Matoran, but the first is probably the truth, as it would explain the reptile's awesome power it exhibited in the battle.