Maxima

Maxima is a warrior Queen from the plant Almerac.

Superman
Born to the royal family on planet Almerac, she visited Earth to pursue Superman as the only man worthy to be her mate. After his rejection she went on a rampage forcing him to take her down. She was later locked up in the D.E.O. headquarters.

Powers

 * Super strength: has enhanced strength equal to that of a Kryptonian's.
 * Invulnerability: body is denser than a human's but not nearly as durable as a Kryptonian's.

Abilities

 * Expert hand-to-hand combatant: is an expert in unarmed combat. Combined with her raw physical power, she was able to physically restrain Supergirl.