Jewelry Bonney is one of the most overpowered characters in One Piece right now, and thanks to the recent power-up that she has received, fans know that she's up there with the very best in the entire series, at least in terms of potential. Bonney has the power of the Toshi Toshi no Mi, which is an incredible Devil Fruit. With its powers, Bonney has effectively taken many futures over the course of the Egghead Island Arc, and more recently, she even managed to tap into the power of Gear 5, which is a transformation exclusively used by Luffy.