Kakamu

Kakamu was once a Ta-Matoran living on Metru Nui in the Matoran Civil War. One day, while fighting in Ga-Metru, the protodermis banks flooded and he was swept out to sea. Energized Protodermis was also poured into the sea, which affected no one but Kakamu. This somehow transformed him into a Toa. His spear was transformed into a Toa Tool and his mask was transformed into a Daran. He was washed up on Daxia and became a member of the Order of Mata Nui. One day, he decided to quit but was captured by them. He escaped by falling into a pool of Boiling Energized Protodermis and Makuta essence which transformed him into a Makuta. Kakamu then joined the Brotherhood of Makuta and became their top scientist, by order from Makuta Blackout. He got an assistant named Mocax from Karda Nui and took control of Nynrah. He designed the Kordaz Sabersword (Destroyed by Airwatcher), and the Nirak Laser-Drill. Once, in a battle with Voporak for the Vahi, his Guardian Fire Spear was disintegrated. Kakamu also assisted in the Brotherhood's war against Zev Raregroove and Malygos. He owned an Axalara T9 given by Ynot, but it was destroyed. Kakamu owned a pet Meltrox and has created new types of Rahi such as the Zahgargak and the Nui-Kiru. Later, he was transported back six months when Blackout used the Vahi Cube to reverse time. This made him realise he didn't like being a Makuta so he infected himself with Formula 223 which turned him back into a Toa. He later confronted Blackout when he unleashed unlimited legions of Rahkshi and wraiths on the universe. Blackout used his creation, the Vahi Cube, to transport Kakamu into interdimensional space. Kakamu absorbed a massive robot there, but it exploded, destroying Kakamu's armour. Kakamu's antidermis found a way back into normal time, and he encountered a group of Sentinels. He downloaded his knowledge into them.

Later, Kakamu (still in his antidermis form) found an Agori named Tratus on Bara Magna. Suddenly, Sunstorm arrived, turned into a gas, and attacked Kakamu. After realizing that he only had an hour until his energy dissipated, he headed for Vulcanus. There he killed a Glatorian, Tarnok, possessed his body, and began rounding up the inhabitants of Vulcanus in order to create an army.

Some time later, Blackout once again arrived, and placed a quantity of unstable hadrium in Bara Magna's core, causing it to explode. Kakamu perished in the blast.

Powers
Kakamu could create Kraata, use all 42 Makuta powers, and control fire.

Alternate Dimensions

 * An alternate version of Kakamu was actually killed by Toa Rabot, although this never actually appeared in the storyline.

Quotes
Kakamu talking to Malygos just before he was warped in-between dimensions.
 * "I'm not allied with Blackout anymore. In fact, I could use a little help against him."