Kabu Kabu no Mi

The Kabu Kabu no Mi ( 株株 ) is a Paramecia type Devil Fruit, which allows the user to fuse and share a body with another. Kabu for “Share”, in both Viz Manga, and the FUNimation dub, it is called the Share-Share Fruit.

Strengths and Weakness
The Fruit gives the user the unique ability to break two bodies down to a molecular level. The user usually uses this ability to share one body, but can also use it to merger with others and destroy the host's cells from the inside. When the user is in need of assistance, the other can bring out some of his body parts to aid the user in blocking or attacking. The second body’s arms and legs can emerge from those of the user's to increase the force and quantity to his physical attacks. If needed, the second body can separate from the user's body so that the two can attack independently. While this can be an effective way of double teaming an opponent, the second body is not used to leaving the user's body and is much weaker when he does so. The user will suffer the standard weakness of the devil fruit.

While within another's body, however, the second person is vulnerable to whatever injuries befall upon the host, in theory allowing the host to commit suicide to kill either of the brothers. After their separation, should any injury befall either of the users, they can merge with each other to heal. This way, their healing rate is much faster than that of a normal human's.