Hello TTV. I am relatively new to MOCing, and I am only now sharing my stuff with the internet. I have an idea for an expansion for where the Bionicle story left off (Velika, Toa Nuva, new toa of little-used elements, etc.), and this moc is part of that.
As suggested below by HK-47, his name is Korva. He is a Toa of Sonics.
His backstory is subject to change and expansion, but the basic idea is this:
Originally an Onu-Matoran, Korva was an apprentice of Nuparu. While the Velika dictatorship was taking hold, the Toa Nuva gave their powers to 6 matoran (similar to Lhikan) in hopes that they would find a way to overthrow Velika's rule. Due to their Nuva transformations, their powers changed the 6 Matoran to have unusual elements. Korva changed from an Onu-Matoran to a Toa of Sonics.
During his studies, Korva discovered a new technology for weaponry. By concentrating the energy used in Zamor launchers, he was able to make energy canisters for use in barreled guns. He made a shotgun and a sniper rifle to use this technology, and also made vibrating claws for melee combat. Using his elemental powers, Korva can make all of his shots silent, or make them vibrate strongly for a loud but powerful impact.
He wears a Kanohi Huna, Mask of Concealment. Using his elements and his mask, Korva acts as the spy/assassin for his toa team.
Any critiques or improvements are welcome. The more I learn, the better I can be.