Jozu commands the 3rd division of the Whitebeard Pirates and is one of their strongest fighters. He first appeared in Chapter 234/Episode 151.
A veteran who's been with the crew since Gol D. Roger's era, Jozu is experienced enough that even Shanks' overwhelming Haki barely phased him. During the Marineford war, he proved himself capable of fighting admirals and Shichibukai on equal footing.
His physical strength is genuinely absurd. He once picked up a massive iceberg—easily ten times bigger than a giant—and threw it across the battlefield. His speed matches his power too; when he rushed Crocodile, even that Shichibukai had to acknowledge both the force and velocity of the attack. It's one of the most impressive strength showings in the entire series.
Jozu ate an unnamed Devil Fruit that lets him turn his body (or parts of it) into diamond, which earned him the nickname "Diamond Jozu." The exact fruit type is still unclear. His diamond transformation makes him incredibly hard to hurt; he's blocked Mihawk's strongest slash without a scratch. Combined with his natural strength, his offense and defense become formidable.
The catch is that he's only truly invulnerable when fully transformed. Aokiji proved he can freeze Jozu's weaker points before they harden, and like all Devil Fruit users, he drowns in water. But when that diamond form is active, he's nearly untouchable.
Content compiled by AnimeList.moe from publicly available sources.
