Power Princess is a construct that was created by the demon Mephisto and programmed by the Power Elite in cooperation with a recently-revived Agent Coulson to be a member of the Squadron Supreme of America, a superhero team sponsored by the U.S. Government. Power Princess's programming had her believe that she was an Utopian who hailed from Utopia Isle, a paradisiac island populated by warrior women.
Featured in these Comics
History
Power Princess came to love America even more, and swore to defend it. Her civilian name was Zarda Shelton, who practiced boxing as a hobby using a dampening necklace to decrease her superhuman durability and strength. Power Princess was additionally programmed to be in a lustful relationship with her teammate, Hyperion.
Power Princess and his team were brought in to meet General Ross in order to be the U.S.'s response to the now-unaligned Avengers. The Squadron Supreme was later put to the test against King Namor and his Defenders of the Deep, countering several attacks against Roxxon in American waters.
Zarda was sparring when a group of Frost Giants from Jotunheim invaded Washington on behalf of Malekith the Accursed during his War of the Realms. As Power Princess, Shelton met up with the rest of the Squadron. They killed some of the Frost Giants and routed the remaining invaders to the Canadian frontier in Lake Erie. Coulson subsequently dispatched the team to Ohio.