Magneon was once a Fe-Matoran named Imydrex that lived on a small island settlement along with other Fe-Matoran. He was a simple iron crafter and was often seen around the large iron towers of the settlement. One day he was atop one of the towers mending a Sonic Receiving Dish, but during a lightning storm, Imydrex was electrocuted. He then fell into an unknown substance that was leaking out of the soil, which transformed into a Toa. He was the first ever Toa on the little island had ever gained, so Imydrex soon was the lone protector of the Matoran against wild Rahi and other dangers.