Marestron is the overlord of the Aestron kingdom and general of its armies. He is really a mutated Raptoid, capable of so much more than any other. Marestron quickly seized control of the Raptoids after his mutation, which took place during an experiment involving several white and blue Raptoids. He currently resides in his bastion castle in the Outlands. He remains an ever-present threat to the Cordarian kingdom.