cassandra is the third character to be called wonder girl, the second being donna troy, following the earlier stories of a young wonder woman using the name. cassandra is the daughter of dr. helena sandsmark, (an archaeologist with whom wonder woman was working) and the greek god zeus. during a fight with a doomsday clone and another battle with decay, she created a costume and used magical accoutrements (the sandals of hermes and the gauntlet of atlas) to help wonder woman, much to her mother's horror. cassandra later had the opportunity to ask zeus for a boon, and requested real superpowers. zeus granted her request, but gave dr. sandsmark the ability to deactivate them with the simple touch of her hand upon cassie. dr. sandsmark, however, reluctantly accepted her daughter's wish to be a superhero and rarely if ever uses this ability.