A Logia devil fruit is a type of Devil Fruit in the One Piece world that grants the user the power to transform their bodys composition into a natural element or force of nature, depending on the fruit. Logia devil fruits are considered to be the rarest of the three types of Devil Fruits. The Logia devil fruit is said to be the devil fruit type that gives the user the strongest powers. The user can transform partly or completely into the natural element, and they can also create and control it. Logia devil fruit users are generally impervious to most non-Haki-based attacks and abilities. Some of the strongest Logia devil fruits in One Piece include the Mera Mera no Mi, Goro Goro no Mi, and Magu Magu no Mi.