Doris Zuel

Doris Zuel, a.k.a Giganta, was a former scientist who became a longtime enemy of Wonder Woman. She possesses the superhuman ability to increase her physical size and mass, effectively transforming into a giantess.

Powers
Giganta has the ability to increase her size from 6'6" to several hundred feet. These powers seem to have been given to her magically since the magical power stealing Black Alice is able to copy her powers. Though strength and durability are not at superhuman level until she grows, she is still a formidable foe possessing some training in personal combat. As a giantess, she is strong and durable enough to take on Wonder Woman. Her suit is specialized to grow with her and enhances her invulnerability. Even at normal size, it is bulletproof and resistant to extremes of heat and cold. Giganta is also a brilliant scientist who now retains her full intelligence at any size.