The Magna Defender is a lone warrior and the sworn enemy of Scorpius. Prior to the death of his son, Zika, he was once a honorable warrior who fought for justice and peace. After Zika's death, he became motivated by his vengeance and disregarded his noble ideals, vowing to stop at nothing to avenge his son.
Later in the series, the Magna Defender passed his powers on to Mike Corbett. Throughout the rest of the series, Mike was known as the Magna Defender when he used the powers.