Original sentence: Early writing and series roles and writing is very much focused on showcasing Shannen Doherty as Prue and most powerful sister, so that most writing centered around her powers— with her sisters in strictly a supporting role though experiencing powers related issues of their own who mainly provide soap opera interludes, companionship services, and humor in plotlines only occasionally needing the three to combine their talents or to  use the Power of Three—the backplot element which alledgedly makes the three into the Charmed Ones, and special indeed as the "most powerful good witches in history", as figures prominently in the writings of later years
Edited sentence: Early writing and series roles and writing is very much focused on showcasing Shannen Doherty as Prue and most powerful sister, so that most writing centered around her powers— with her sisters in strictly a supporting role though experiencing powers related issues of their own who mainly provide soap opera interludes, companionship services, and humor in plotlines only occasionally needing the three to combine their talents or to use the Power of Three—the backplot element which alledgedly makes the three into the Charmed Ones, and special indeed as the "most powerful good witches in history", as figures prominently in the writings of later years