At first, Carol just used her powers for her own amusement. However, when she heard her roommate Jenny Jones being attacked outside their apartment building, she jumped to her defense and drove the attackers off. Cat Claw enjoyed the experience and decided to create a costumed identity. Carol "borrowed" some special fabric, woven from metal, to create her mask, gloves, and boots from an Institute.
Her powers include cat's agility, claw-like fingernails, great superhuman strength and night vision.