Superwoman

History
Superwoman was one of the six main members of the Crime Syndicate in the Earth universe that they inhabited. She had a relationship with fellow team member Owlman, whom she saw as nearly psychopathic as she was if not more. Superwoman was one of the members who favored the use and development of a quantum-powered nuclear weapon that would destroy all life on Earth if the Earth governments refused to relinquish what little power they had left to the Crime Syndicate. However, Owlman had a much more sinister purpose for the weapon: to destroy all realities that have sprung from the one that he called Earth-Prime. Superwoman kept Owlman's personal plans for the weapon a secret, but was evenutally suspected by her fellow teammates when Owlman transported the weapon to Earth-Prime without their knowledge. She and the surviving members of the Crime Syndicate were later brought to justice when Batman transported Owlman and the activated weapon to a cold desolate Earth universe where it would destroy that Earth without harming anyone.

Powers
Mary Batson of Crisis On Two Earth's appears to be generally superhuman, possessing incredible strength, speed, invulnerability, reflexes, agility, and stamina that allow her to go toe to toe with both Superman and Wonder Woman. She was able to lift a marble pillar and drop it onto Batman, take and receive blows from Superman, and break Batman's rib by lightly pressing on it. She is also able to fly at supersonic speeds, creating a sonic boom when she flew after Wonder Woman. Superwoman may also possess Super Breath, as she was able to create a vacuum powerful enough to take in a cloud of anesthetic gas created by Batman simply by breathing in. Though it was never displayed, Superwoman could also possess the ability to create lightning strafes like the other Marvels in her employ.

Abilities
She appears to be a fair hand to hand combatant and is knowledgeable on inflicting pain.

Strength level
She is able to lift well over 100 tons.

Weaknesses
Superwoman is overconfident, which may lead to her downfall against more clever opponents like Batman.

Equipment
Formerly Superwoman possessed a device that opened pathways to alternate Earths.

Transportation
Flight under her own power