Frekaz

Frekaz was a mutated Fe-Matoran serving Tridax.

History
Frekaz, like most Matoran, was created by the Great Beings to construct and populate the Matoran Universe. Frekaz settled down in the Southern Continent. A few years ago, Gorast kidnapped and brought him to Tridax. Tridax used him as the basis of an experiment regarding the genetic materials of Matoran and another race. The process, though, mutated the Fe-Matoran into a horrifying form. Disgusted, Tridax considered him a failure and had him placed into the cell of his "pet lab rat". There, Frekaz would guard the outsider until the breakout on Unoyr.

When a few escaped test subjects and Turaga entered the room, they fought the deformed creature. The battled ended with him being knocked into a Dark Elemental Energy shield, frying the fellow to a crisp. While his main body was destroyed, however, he managed to separate himself from it in an attempt take the prisoner's life. One of the escapees, however, trapped and crushed him within a hand of Stone before he could do so. It is unknown if he was revived at the Red Star after this, and if back into his original form.

Abilities and Traits
What his personality was like is unknown. However, it is known that he was driven insane as a result of the experiments. After his main body crashed into the energy shield, he seemed to undertake another change in personality, attempting to murder the very thing Tridax wanted to protect. The shield may have damaged his AI, perhaps causing him to lost the ability to reason logically.

Frekaz was your average Fe-Matoran until Gorast took him. The process caused a rapid increase in organic material. His old body was destroyed in the process, giving way to a fleshy abomination. His original head shifted into a new limb, while a fake one took the place of his true head. He grew pincers and a bent blade. His legs dissolved into a stump, fusing him to the ceiling. He would generate poisonous spikes on his body, which he could then fling at any enemy. He could detach himself from his main body if need-be, and could slither way from death.

Mask and Tools
As mentioned, he grew pincers and a fleshy blade as a result from his mutation, as well as fire thorns.

Trivia

 * This former Fe-Matoran was an entry for a contest on MOCPages. It was called the "Mu-Toran Moc Contest". The main objective was to build a mutated Matoran of some form.
 * His name name was derived from the word "Freak".