Antroz

Makuta Antroz is a member of the Brotherhood of Makuta who later died during the energy storms of Karda Nui, but later was found and reborn.

Creation
Antroz was created like any other Makuta: with Antidermis. When Teridax rebelled, he was one of the first who joined him.

Pre-Karda Nui
After the rebellion, he surpassed the need for a physical body. Antroz also got his own Toa Hagah, but they were later killed by Teridax's team. He later became the leader of the Karda Nui team.

Karda Nui
After arriving, when Matoro put on the Ignika, he was blinded by a sudden flash of light. He then received his own Shadow Matoran partner to help him see. He then kept torturing the remaining Av-Matoran until the Toa Nuva arrived in Karda Nui.

After several fierce battles, Antroz traveled down to the swamp of secrets to unite with his brethren down below. It was there that he snuck into the Codrex and Hijacked the Jetrax T6. The vehicle also provided him the power to "see" through it.

During the energy storms, he died in the latter of it.

Post-Karda Nui
Soon, after Teridax died, before exiting the Matoran Universe, Makuta Metrados and his minions traveled down to Karda Nui, where they found the dead body of Antroz.

Spherus Magna
After leaving behind the Matoran Universe, the Shadow Makuta Brotherhood revived Antroz by inserting Antidermis into his body. He was left in Vehicle form, since his fight form would give him an easier way to escape. Soon after, he made a deal with Merodos: he helps kill Metrados, and he gets to help run Spherus Magna once it's taken over by him. He tried several things, but none of them worked.

Later, he followed the Toa Merok to an aniceint temple, where he stole the Mask of Transformations. He then used it to impersonate plenty of beings until finally Merodos stole the mask from him. Once Merodos was "dead", he took the Kanohi back.

He now works loyaly for Metrados.

Powers, Tools, and Abilities
Antroz was blinded by a huge flash of light in Karda Nui, so he couldn't see. When he was revived, he was given the power to see agin.

He wore the Kanohi Jutlin, the Mask of Corruption, which allowed the user to decompose dead or non-living things. The mask also has teeth on it, which can be used. He carries two blades and a Tridax Pod. After his rebirth, he still had a Jutlin, but had no actual tools.