This article contains spoilers for the One Piece series.

When it comes to the power systems of One Piece, Oda often relies on two, those being Devil Fruits and Haki. While both are important in their own ways, the latter is absolutely essential if one needs to make it through the perils of the New World. Haki is a spiritual energy that is dormant within everyone in the world, but only a few manage to tap into it. It can be divided into two types: Observation Haki and Armament Haki. Additionally, there exists a third type called Conqueror's Haki, which is possessed by only one in a million people.

Devil Fruits That Can Rival Imu's Devil Demon Form
One Piece: 5 Devil Fruits That Can Rival Imu's Demon Form

Imu has a powerful demon form, and these decil fruits could potentially rival it in One Piece.

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Haki has proven multiple times to be the real king in the series. During God Valley, some of the strongest characters of all time were seen using powerful Haki, all on the same island. Be it the powerful fighters of the Roger Pirates, or Rocks Pirates, or even the Marines and the Government, God Valley held some of the very best Haki users of the time.

Figarland Garling

One of the Holy Knights and Future Five Elders

Figarland Garling is currently the Supreme Leader of the Holy Knights and a new Gorosei, but during God Valley, he was far from his full potential. Garling was only a Holy Knight back during the God Valley Incident.

That said, he was probably the strongest Holy Knight there. Garling wasn’t all that impressive as he was defeated quickly by Rocks, but he still probably has great Haki.

Saturn

A Member of the Five Elders

Saturn was a crucial individual during the God Valley Incident as it was he who witnessed the escape of the Davy Clan, allowing for Imu to quickly take over his body to fight the threats ahead.

Under Imu's influence, Saturn was very overpowered, but even on his own, Saturn is a top-tier character in the One Piece world. All of the Five Elders are strong and have monstrously powerful Haki to go alongside their Yokai powers. With Imu's Haki on top, his Haki was the strongest on God Valley.

Big Mom

A Future Yonko

big mom and captain john one piece chapter 1157 raw scans

Big Mom, just like Whitebeard, was also present on God Valley as a subordinate of Rocks. Her main goal was to collect powerful Devil Fruits, but she has switched her focus to fighting with Rocks and the crew out of loyalty. Big Mom had her Devil Fruit back then too, but fans now know that she also had great control over her Conqueror's Haki. She was seen launching a powerful Conqueror's Haki wave at Imu with a technique called Ikoku.

Whitebeard

The World’s Strongest Man

Whitebeard and big Mom in God valley

Whitebeard was, back in God Valley, a subordinate of Rocks D. Xebec, and it's quite clear to see that he was the strongest after him in the Rocks crew.

Even back then, Whitebeard had his Gura Gura no Mi, but he also had great Haki. Whitebeard had a Haki clash with Roger, and even though fans didn’t see much of that on God Valley. He also infused his quakes with advanced Conqueror's Haki, with a technique called Space Breaker.

Garp

The Future Hero of the Marines

roger vs garp one piece chapter 1157 leaks

Garp would go on to be known as the Hero of the Marines after the events of God Valley, and of course, many would consider him, even in his older age, the strongest Marine of all time. Garp and Roger were rivals, and it could be said that they were equals.

Just like Roger, Garp only relies on his Haki, and it’s safe to say that his Haki is some of the best in the series. His haki is so powerful that he easily tanked an attack from Linlin. He and Roger also went on to defeat Domi Reversi Rocks, which on its own implies extremely high levels of Conqueror’s Haki.

Gol D. Roger

The Future Pirate King

roger vs whitebeard one piece 1162 spoilers

Gol D. Roger paved the way for other pirates in One Piece after becoming the Pirate King and conquering the Grand Line, something nobody else had achieved before him. Roger doesn’t just hold a grand title for nothing, he also showed his immense power on multiple occasions.

One Piece: 8 New Haki Users After The Elbaf Arc
One Piece: 8 New Haki Users After The Elbaf Arc

These One Piece characters are in dire need of haki, and they might unlock it after Elbaf.

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A non-Devil Fruit user, Roger only relies on his incredible Haki, which he used to clash with the likes of Whitebeard, and even Rocks. To beat a Domi Reversi Rocks, Roger must’ve used a tremendous amount of advanced Conqueror’s Haki. He even sent Oden flying with his Haki blast.

Rocks D. Xebec

The Captain of the Rocks Pirates

Rocks D. Xebec is undoubtedly a legend in the One Piece world. He led the craziest crew to ever sail the Grand Line, called the Rocks Pirates. One has to be insanely powerful to lead the likes of Whitebeard and Big Mom, and Rocks did all that with no Devil Fruit powers. In other words, his Haki was insanely powerful. Rocks’s Haki was so strong that it allowed him to easily kill an Admiral and to defeat Garling with no difficulty at all.

Imu

The Secret Sovereign of the World

Another, more recent, closeup of Imu's eyes - One Piece

Imu’s presence on God Valley wasn’t something all fans anticipated to see, but it has been an amazing inclusion by Oda. Imu was definitely, and by far, the strongest on God Valley.

They have a powerful Devil Fruit, but that doesn’t mean they don’t also have overpowered Haki as well. Imu’s Conqueror’s Haki is some of the best, and fans have yet to see the full extent of it.

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Release Date
October 20, 1999
Network
Fuji TV
Directors
Hiroaki Miyamoto, Konosuke Uda, Junji Shimizu, Satoshi Itō, Munehisa Sakai, Katsumi Tokoro, Yutaka Nakajima, Yoshihiro Ueda, Kenichi Takeshita, Yoko Ikeda, Ryota Nakamura, Hiroyuki Kakudou, Takahiro Imamura, Toshihiro Maeya, Yûji Endô, Nozomu Shishido, Hidehiko Kadota, Sumio Watanabe, Harume Kosaka, Yasuhiro Tanabe, Yukihiko Nakao, Keisuke Onishi, Junichi Fujise, Hiroyuki Satou
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  • Cast Placeholder Image
    Mayumi Tanaka
    Monkey D. Luffy (voice)
  • Cast Placeholder Image
    Kazuya Nakai
    Roronoa Zoro (voice)

WHERE TO WATCH

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One Piece is a Japanese manga written and illustrated by Eiichiro Oda. The series follows protagonist Monkey D. Luffy and his Straw Hat Pirate crew as they explore the Grand Line to find the King of the Pirates' ultimate treasure, the One Piece, in order to become the next king. The manga's popularity helped it spin off into a larger media franchise, including an anime with more than 1,000 episodes.

Studio
Toei Animation
Creator
Eiichiro Oda
Streaming Service(s)
Crunchyroll, Netflix, Hulu, Pluto TV