Uraniguan U'gi is my entry in the current moc contest going on over at the Bionicle subreddit. He is supposed to represent the element of Uranium. Storywise (My own universe) he is being thought to once have been a Toa but his powers and appearance cause some people to believe differently, these powers being to increase anyone in his proximity to increase in power. The downside to these powers being that anyone or anything who comes in contact with this boost for prolonged amount of times is severely radiated or killed, for instance he leaves a trail of destruction behind him.
More images here https://imgur.com/a/gKwmu