Magas was a short, cruel sorcerer and the brother of the late queen whom Keela served. She recognized him as a heartless person and turned him into a Cyclopean Dinosaur-like beast, thus sealing his magical powers.
Over time, Magas slowly regained his power and hunted Keela down to the Porters' treehouse. He was defeated by Keela with Tasha's help but not before Keela restored him to his true form.