Lhikan

Lhikan was a toa of fire and the leader of the Toa Mangai who protected the city of Metru Nui and the matoran. Lhikan was a brave vetran of the Toa-Dark Hunter War when the Dark Hunters, an organization of mercenaries, tried to take over Metru Nui and the Toa stopped them successfully, but Lhikan was betrayed by his fellow toa, Nidhiki, who became a cunning mercenary. After the war, Turaga Dume, the city's leader, sent the surviving Toa Mangai except Lhikan on missions to other places in the Universe and ordered for all passageways linking Metru Nui to other lands closed. All the toa were executed by the Dark Hunter mercenary Eliminator. Lhikan then became the sole protector of Metru Nui.