Kamahn was a Matoran of Tegen Nui that witnessed the creation of the anti-shadow barrier and the renaming of Tegen Nui to Akyna Nui. He later became a Toa Akyna along with Haddisi, Kadyx, Dekea, Nadhoku, Ahsia, Atast, and Taatoh. When Makuta Venetraze broke through the barrier, he drained the Toa Akynas' light and took Taatoh to Gahru Nui. But Kadyx stunned the shadow leeches, and the Toa were saved. Kamahn has since returned to Myhore but he was transformed into a half Toa, half Makuta by something that will be revealed later. The only person that knows of his return is Haddisi.