Oda Officially Reveals Sanji’s Strongest Transformation 

Sanji is one of the strongest members of the Straw Hat Pirates and an incredibly powerful character. Fans know him to be the cook of the crew, but more than that, he’s also an excellent combatant. Sanji possesses tremendous strength up his sleeve, and in the Wano Country arc, which wasn’t all that long ago, he gained a phenomenal power-up that allowed him to tap into the blue flames of Ifrit Jambe.

But, Sanji isn’t done growing just yet. Eiichiro Oda has already confirmed his latest power-up which will give him his greatest transformation and allow him to fight against some of the strongest characters in the One Piece world, such as the Admirals, Yonko, and the Holy Knights.

Sanji’s Final Transformation Will See Him Use Stronger Flames

Sanji Could Gain Black Flames

• Sanji will learn Conqueror’s Haki soon
• His strongest form will soon be revealed

Sanji has some very interesting powers up his sleeve, some of which can’t even be explained. He isn’t a normal human, as he was experimented upon in his mother’s womb. Years later, his latent powers showed up and he developed some incredible abilities, such as a powerful exoskeleton, more muscle mass, and a regeneration factor. All these things combined to make Sanji a monstrously powerful character to take on in combat for anyone, and his usual flames of Diable Jambe turned into Ifrit Jambe, which now burned hotter than ever before.

While Sanji is already strong enough to go up against Admiral level characters, fans know very well that to beat them, he needs to get stronger, and Oda has lined up his next transformation for just that purpose. Sanji will, eventually, gain access to Conqueror’s Haki. The setup for it is quite clear in One Piece. Once he does that his final “transformation,” which will see him make use of hotter and stronger flames will be shown by Oda. It must be remembered that Sanji can sustain infinitely hot flames on his legs. But, his body’s durability matters. The higher his body’s defense, the hotter he can make the flames. When he gains access to Conqueror’s Haki, he can use it to coat his legs and gain higher durability and endurance. As such he will gain hotter flames, which will likely be black.

What Sanji Gaining Conqueror’s Haki Means For His Overall Power

Sanji Will Become Admiral Level After Elbaf

As soon as Sanji awakens Conqueror’s Haki, which should be very soon, he will automatically become one of the strongest characters in One Piece. Sanji will then be among a handful of elites known to have this incredible power. With Conqueror’s Haki, Sanji will be able to take on the Holy Knights, and at the same time, the Admirals and the Yonko of the One Piece world. It is only a matter of time before Oda gives the fans a proper look at Sanji’s final transformation with potentially powerful black flames.

For now, One Piece is still in the Loki flashback of the Elbaf arc, which means it will be a while before Oda officially turns to the main Elbaf fights, but when he does, Sanji’s growth will be one of the most important things that fans will get to see.

One Piece Chapter 1159 will be out this week. As usual, One Piece is going to drop on Sunday. In Japan, One Piece drops at 12AM JST on Monday. However, the vast majority of international readers will see the chapter available on August 31. The official release date of One Piece Chapter 1159 is September 7, 2025. Fans can read the chapter for free on Manga Plus.