Arcadius is a Seraph Champion. When he was still a Toa, he was called to Mata Nui to become the Champion of 100,000 Years, a supreme warrior that acts as Mata Nui's hand and upholds Justice and Light. By Mata Nui's command, he is currently training the Toa Baras Varix, Romnas and the ice Toa, Perach. He wields a staff of light.
I'm pretty sure that this guy uses at least one part from every Bionicle generation. Exept for Stars and Legends. I dont have parts from those.
About this creation
This is his Toa form, Arcadia. He was a Toa of Lightning before Mata Nui called upon him to become the 100,000 year Champion. He was the 7th Toa Bara.