Black Bat

Amalgam of DC hero Batgirl and Marvel hero Black Cat.
Barbara Gordon Hardy was an ex-thief who was determined to become a S.H.I.E.L.D. agent. Using her natural athletic skills to fight crime, she created a superheroic identity, the Black Bat. She quickly proved her worth to S.H.I.E.L.D. agent Bruce Wayne. Barbara was invited to join the secret organization.