Gihren

Story:

Toa Gihren was one of the Toa Agonex created by Makuta Maxima. He was the first to be unleashed on Spherus Magna and killed Toa Hectavian, stealing his mask. Gihren then started to corrupt a group of Le-Matoran, making them into mindless slaves that wore masks similar to Kraana. Gihren was also the leader of the Toa Agonex and was by far the most sadistic and cruel. He wore an Infected Miru which gave him the power to transform into a black cloud and fly although only for a short time.

His army of Le-Matoran were freed by The Order of Spherus Magna and a bounty placed on Gihren's head, he soon became one of the most wanted people on Spherus Magna. He was attacked and almost killed by the Dark Hunters Sperix and Nahdaka but escaped using his mask powers. He later defected from Maxima's side and attempted to start his own empire in the area that had been Bota Magna. It was here that he formed an uneasy alliance with Mongrelus in order to retrieve the Mask of Life from it's resting place in the great jungle.

When the two finally discovered the mask, Gihren immediately killed Mongrelus and attempted to don the Ignika himself, however Gihren was never destined to wear the mask and his body was torn apart by it's power which resurrected Mongrelus, the true destined wielder of the mask. Mongrelus then used the Ignika as well as Gihren's original mask to track down Makuta Maxima.

The ghost of Toa Gihren was later summoned by Nahdaka when she created her army of Zombies in order to gain information on the location of Maxima, Gihren readily told her in the hopes that she would resurrect him in return however she trapped his ghost in The Eldritch Blade which morphed it into a shape resembling Gihren's weapons in life as well as granting it some of his powers.

Info:

Gihren's twin arm blades are made of antidermis and are able to morph into claws. His elemental power is that of Envy, which he uses to manipulate his minions into doing his bidding. He also despised the Rahi that Maxima corrupted, thinking that only Toa should serve a Makuta. He is the only Toa Agonex technically still alive (in The Eldritch Blade) as briefly wearing the Ignika make him immortal but destroyed his body, cursing him with unlife as a ghost.

Should the Eldritch Blade ever be connected to a robotic body (as was its intended function), Gihren would control it.

Non Canon Info:

Gihren was originally going to be a corrupted Lewa Mata and would use a black version of his Axe as well as a black rending claw like Makuta Maxima.

Gihren's name was taken from that of Gihren Zabi, a character from the Mobile Suit Gundam franchise.