Juryoku Juryoku no Mi is a Paramecia Devil fruit that gives one the ability to control gravity it was eaten by Issho better known as Fujitora
Strength and WeeknessEdit
It grants him the ability to manipulate gravity around a chosen location at will by sending gravitational forces. He first used this power to create a gravitational force of such intensity that it caused the swindlers to be pressed heavily against the floor, which caved in to create a gigantic hole as a result.Later, he used immense amounts of gravity to accomplish other feats, such as summoning a meteor to fall from the sky. After the battle against Law with Doflamingo, he used his power to increase gravity on one point to pin Law to the ground and immobilize him.However, it seems that his gravity powers can be disrupted by attacking Issho himself. This is shown outside the Coliseum when Issho and Doflamingo confronted an injured Law, Kin'emon and Zoro used a projectile slash to interrupt Issho, enabling Zoro to escape from Issho's gravitational pin.
Issho can also reverse gravity to create a circular barrier around him which repels attacks. As a testament of his power, he stated that the meteor he brought down was merely to test his strength. This was proven further much later, when he was shown capable of levitating all of the rubble on the entire island of Dressrosa. He usually unsheathes his sword in order to create the gravitational forces. He is also able to use his powers to levitate and move materials such as a battleship or a rock, similar to Shiki's Fuwa Fuwa no Mi,and use the rock as a platform to stand on to levitate; though unlike Shiki's power, Issho's is not hindered by the necessity of having to touch the target beforehand, and he can affect both living and inanimate objects; in exchange, Issho must maintain his focus for his powers to remain active. No weaknesses have been figured out but the user suffers from standard devil fruit waknesses.