Bane Bane no Mi in One Piece

As the fruit hasn't yet been shown in the anime, we don't know a lot about its appearance.

The major advantage of this devil fruit is that it gives the user the ability to transform their body parts into springs. When the user turns their legs into spring, it grants the user amazing jumping and bouncing power which can be used to launch them at incredible speed and also throw attacks at high momentum.

The user can break through surfaces by using reactive force. When the user applies this ability to other surfaces like their arms, they can release strong, long range attacks. They can turn their stomachs into springs which allows them to become flexible.

The disadvantage of this devil fruit is that the power lies in the self propulsion by turning the legs to spring and they can only shoot themselves in a straight line. This makes their attack quite predictable and the enemy can easily counterattack it. The user usually needs a solid surface to bounce off and this also determines the direction the user goes to and the impact of the bounce also leaves a lot of damage.

Bellamy uses the devil fruit's power for combat purposes. He usually uses it to turn his legs into springs and launch himself. He holds his fist out so that when he bounces off, he can hit his enemy at a fast speed. He also used his power to execute people. He can also change both his legs into one spring and use his spring arms as extensions, just like how Luffy uses his rubber hands.

The techniques used by Bellamy are:

Spring Spine

In this technique, Bellamy turns both his legs into spring and then launches himself directly at his opponents with a punch.

Spring Hopper

This is Bellamy's ultimate attack in which he uses his surroundings to bounce from one place to another. When he starts increasing his speed with each jump, he distracts his enemies with a continuous sound and then disappears. He just aims himself fist first towards his target and launches himself. He is later on seen combining it with Busoshoku Haki.

Spring Death Knock

In this technique, Bellamy turns his arms into springs and then compresses them. He then releases it as a powerful long ranged punch.

Q. What does Bane mean?

A. The word Bane in Japanese translates to 'spring'.

Q. Is Luffy's Gomu Gomu no Spring Bullet inspired by Bellamy?

A. Yes, Luffy's Gomu Gomu no Spring Bullet is inspired by Bellamy's Spring Hopper techniques in order to pay homage to Bellamy.