Masutā Masutā no Mi

Master Master Fruit is a Logia-type Devil Fruit that allows the user to create and control Shurikens at will, making the user a Ninja Human (忍者人間 Ninja ningen). It was eaten by Paul Gekko.

Appearence
Master Master Fruit is a large, round, light purple fruit made up of many small teardrop-shaped components with swirl patterns, and green leaves sprouting from the top. Its overall shape and appearance closely resembles a pineapple or a bunch of oversized and unusually shaped grapes.

Strengths and Weaknesses
The fruit's major strength, as demonstrated by Paul Gekko is that the person's body can stretch like rubber, produce magma to attack his opponents, control darkness and its unique property of gravity and generate massive vibrations, or shock waves, which can travel though virtually any medium, including the ground, the seafloor, or even in the air.