Onekai

Toa Onekai was once the matoran Oneharu. He was chosen to be one of the toa of Mankii Nui the paridise island. But along the way on his journy the become a toa, Makuta corrupted his mind turning him into a dark toa but the Toa Intoka restored him of his light power. He was visited by a large glowing Kanohi Tau that told him to find the other Toa Mankii. When he found the other Toa he was transformed into a stronger Toa with a new mask that allowed him to expel darkness from anything within a mile radius. He took the other toa Mankii into Karda nui after he was visited by the giant glowing Kanohi Tau once more telling him that a great disaster was about to happen, and that he must help the Toa nuva evacuate the Av-matoran. After that they hurried back to Mankii nui to make sure the Ma-matoran, and see if the makuta had already reached their home. They had fought off most of the makuta and took the matoran underground trying to escape the makuta above.