Prototype is an antagonist in the BIONICLE franchise. He is a fusion of two Toa warriors of Fire and Earth, who is a member of the Dark Hunters.
Prototype was a fusion of two entities, a Toa of Fire and a Toa of Earth. One of the Dark Hunters got ahold of the Spear of Fusion and fired it at the two Toa as they were merging their bodies together into a Toa Kaita-like form. The process resulted in the two of them being fused together permanently and driven mad. This newly-created being went on a rampage, and disappeared. He was later found injured in a swamp after centuries, and was nursed back to health by the Dark Hunters and recruited. Thus, he was given the codename Prototype.
Prototype served as a guard for the Shadowed One's fortress. Unfortunately for him, Vezok managed to trick him into deserting his post by telling him that Zaktan was a traitor and that Prototype needed to go to the other end of the island to warn the Shadowed One (Who was actually inside the fortress). It remains unknown whether Prototype was allowed to keep his position following his mistake.
After the death of Makuta Teridax, Prototype evacuated from the Matoran Universe onto Spherus Magna.
Upon his creation, any of Prototype's organic parts had decomposed to the point where he was mostly mechanical. He was very powerful, but also quite stupid. His life force is tied to his armor, but after so long it is impenetrable. Prototype was occasionally used by the Dark Hunters as target practice for rookie Dark Hunters. If they survived a battle against him, they could handle their missions.
Powers and Abilities
Being a fusion of two Toa, "Prototype" retains control over the elements of Fire and Earth. He also is equipped with a pair of Tri-taloned claws on his hands.