Toa Mahri The Toa Mahri are the former Toa Inika , transformed into sea - dwelling heroes by the Kanohi Ignika . They were released as canister sets in 2007 . History . After the events on Voya Nui , Axonn opened a secret passage for the Toa Inika to descend through , known as " The Cord " . When journeying down the cord , the Toa Inika fought against the Zyglak , and in the midst of the battle , a 300 Feet Mutant Venom Eel made cracks in the cord while squeezing it . The Inika exited through a crack and into the cold waters of The Pit , where they transformed into their current forms , due to a large explosion of light from the Ignika , giving them new Kanohi masks and Toa Tools . They later fought the Mutant Venom Eel , which was defeated by Hewkii using his Kanohi to send the eel crashing down to the seafloor . After being transformed , the Toa spotted the underwater city of Mahri Nui where they encountered the Matoran there . At first , the Matoran of Mahri Nui were skeptical of these Toa , and refused to let them into their underwater city . In order to gain their trust , the Toa split up . Matoro was to stay with Defilak to negotiate , and the rest were sent to defeat some 5000 Keras crabs in the Fields of Airweed . When the Barraki , Carapar , withdrew his army , Idris reported to Defilak that the Toa Mahri looked like partners to the Barraki . Matoro tried to make a break for it , freezing the water around them to escape . However , he was quickly captured and held by Hydraxon . However , the robotic guardian Maxilos , with Makuta Teridax controlling it , freed the Toa . Matoro then followed the Makuta into the ruin of the inner Pit , where he was forced to revive the corpse of Toa Tuyet . While traveling to a meeting place with Makuta Icarax , the pair was attacked by Karzahni . After a swift battle , Teridax emerged victorious , and Karzahni left even more insane than before . Shortly afterwards , Icarax gave the Staff of Artakha to Teridax , who had plans of recreating the Nui Stone with it . However , Brutaka intervened and provoked a fight , during which he had Matoro flee . Meanwhile at the Fields of Airweed , the other Toa Mahri were captured by the Barraki . The Barraki placed each Toa into caves and stationed Rahi from their armies to guard them . Here , Hewkii and Nuparu discovered an artillery room of the Barraki ' s and stole the Cordak Blaster s from it . The pair ran into the rest of the group and gave them each a Cordak Blaster , and Kongu decided the replace his melee weapon with a second blaster . After some discussion , each Toa was given a task to perform , and they separated again . After Mantax obtained the Ignika , the team reunited . Hahli proved they were on the Matoran ' s side , and Defilak , now convinced that the Toa Mahri were going to fight the Barraki , named them " Toa Mahri . " Matoro later informed the Toa that in order to save Mata Nui ' s life , they have to destroy the Cord to send Voya Nui back to it ' s former position , but it would destroy Mahri Nui on the way . So the Toa had the Matoran evacuate their city , and then took them to the caves under Voya Nui for protection . On their way there , the Toa were ambushed by the mutated Piraka , who threatened to kill all of the Matoran if the Toa did not surrender . Suddenly , both the Toa and Piraka were knocked unconscious by a mysterious blast of power . After they awoke , the Toa learned that the blast came from Axonn , who later led them to a cave that contained the Toa Terrain Crawler . They used the Rahi to quickly go down The Cord . After a ferocious battle with the Barraki and Hydraxon , the Toa destroyed The Cord with their Cordak Blasters . The Toa Mahri obtained the Kanohi Ignika , just as the Great Spirit Mata Nui died . Matoro decided to use the Kanohi to bring back Mata Nui while the others risked their lives to try and buy Matoro time . Matoro managed to get into the universe core , Karda Nui , before Voya Nui covered the hole to Karda Nui , and then he used the Ignika , killing himself in the process . However , during his last moments as an individual , he teleported the other Toa Mahri back to Metru Nui , where they became amphibious by the power of Matoro and the Ignika . They later returned to protect Metru Nui , until they came under the control of a golden - skinned being . Members . The Toa Mahri include :