Diamondback

Diamondback (Rachel Leighton) is a fictional character appearing in American comic books published by Marvel Comics. Originally depicted as a supervillain who was part of the Serpent Society, she was first introduced in Captain America #310 (Oct. 1985) and became a series regular for years afterwards. Rachel Leighton made her debut as part of the Serpent Society and soon came into conflict with Captain America as the group carried out an assassination. Later on Leighton started to develop…Wikipedia