The Rumble Rumble devil fruit was introduced in the Skypiea arc of the One Piece series and has not made an appearance since the conclusion of the arc. As a logia-type devil fruit, the Rumble Rumble devil fruit makes its user a lightning human, as the user, in essence, can control and become lightning. So far, the only character seen in the series to possess the Rumble Rumble devil fruit is Enel, and with the fruit, he granted himself the moniker of God.