This post contains spoilers for One Piece.

Monkey D. Luffy is the captain of the Straw Hat Pirates and one of the strongest characters in One Piece. Through his share of adversaries, Luffy has grown more determined and powerful. In fact, at one point, it was almost inconceivable to imagine him losing a fight.

One Piece Luffy Next Upgrade Haki
One Piece Quietly Sets Up Luffy's Next Haki Power Up

Luffy's next Haki power-up, called Observation Killing, will allow him to reach the level of the likes of Shanks.

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However, the Final Saga of One Piece has introduced several villains who have overwhelmed Luffy in combat, proving that the young pirate still has a way to go before he can truly be called the strongest character in the series. One of the abilities that Luffy can improve on is his Haki.

Luffy Has All Three Types Of Haki

Luffy Can Use Every Type Of Haki

Luffy Three Advanced Haki Types One Piece
  • Luffy needs to become stronger to beat his next enemies
  • Gaban will teach him about another Haki application

In One Piece, there are only a handful of characters who possess all three types of Haki, and Luffy is one of them. Surprisingly, Luffy used Conqueror's Haki way before the other two types, which is a sign of his incredible willpower. He learned to use Armament and Observation Haki during the two-year timeskip when he was training with Silvers Rayleigh. The latter also taught him to use Conqueror's Haki without having to rely on overwhelmingly strong emotions.

I Don’t Want To Conquer Anything. I Just Think The Guy With The Most Freedom In The Entire Ocean Is The Pirate King.

When his training concluded, Luffy reunited with his crewmates to continue the journey of finding the One Piece. The rigorous practice made him strong enough to beat most of the enemies that he encountered in the New World, but that changed when the young pirate faced Charlotte Katakuri, the strongest Sweet Commander of the Big Mom Pirates.

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Katakuri could also use all three types of Haki, but he had extraordinary control over Armament and Observation Haki. He could even see the future with his Observation Haki, which made it almost impossible to beat him in combat. However, Luffy needed to find a way, and he did so through sheer determination and the ability to improve. Luffy awakened Future Sight while simultaneously enhancing his Armament Haki, which aided him in his victory.

Luffy awakens his Gear 5th form in Wano (1)-1

Luffy's next Haki power-up came in the Wano Country arc, where Hyogoro taught him to use Ryou, which could be used to destroy the target from within. Unfortunately, this wasn't enough to beat Kaido. Thankfully, Oda gave Luffy the ability to infuse Conqueror's Haki into his attacks. This increased the potency of attacks, allowing Luffy to conquer Kaido. Following the Wano Country arc, the common belief was that Luffy's Haki had finally hit its peak. However, that is not true at all.

How Luffy Can Improve His Haki In One Piece

Advanced Conqueror's Haki Immortality Counter Image by Viz Media

So far, Luffy has shown that none of his attacks are able to hurt characters who possess regeneration, as evidenced by the battle on Egghead Island. Luffy tried to hurt Saturn and the other Elders multiple times, but it was to no avail. In fact, the Five Elders had the advantage and would have easily slaughtered the entire Straw Hat Pirates if not for Emet and the Giants. Therefore, Luffy's next Haki power-up needs to be the one that enables him to bypass the regeneration of the Five Elders, Holy Knights, and Imu.

  • Initially, hurting the immortal beings was considered impossible, but Scopper Gaban proved that it could be done.

The left-hand man of the Pirate King even made it clear that it required Conqueror's Haki. Since Luffy is well-versed in using Conqueror's Haki, it shouldn't take long for him to learn how to bypass the regeneration. Once he understands the concept, Luffy will take a massive step towards beating Imu and any other foes that stand in his way. Some fans may have doubts about whether Oda will hand Luffy the new power-up in Elbaf or not. However, the current situation in Elbaf calls for a hero, and Luffy could be the one.

Luffy's Next Enemies Will Be Even More Dangerous

Luffy Needs To become Stronger

One Piece Gear 6 Luffy Image by Toei Animation

Luffy has fought a lot of powerful enemies so far, and he has managed to beat most of them. However, his next opponents won't be so easily beaten. Judging by how the story is progressing, it is safe to say that Luffy is going to fight the Holy Knights and Imu in the future. Additionally, he might also have to fight against Akainu, who was responsible for killing Ace. Although a situation where the two might cross paths has yet to occur, there is a strong likelihood that it will change soon.

One Piece Oda Rival Shanks Haki
One Piece: Oda Has Already Revealed The Only Man Who Can Rival Shanks's Haki

Shanks is a haki master, and only one person can rival him in One Piece.

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There is also a strong chance that Luffy will end up facing Blackbeard. Both of them seek the same thing, so it's inevitable for them to fight each other at some point. Currently, Blackbeard has the edge over Luffy because he has two incredibly overpowered Devil Fruits. While Luffy may be able to handle the Gura Gura no Mi, the Yami Yami no Mi is another story. Blackbeard can use its power to nullify the Devil Fruits. So, Luffy has to find a way to bypass it. Needless to say, the fight between them is going to be fantastic.

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One Piece
Release Date
October 20, 1999
Network
Fuji TV
  • Cast Placeholder Image
    Mayumi Tanaka
    Monkey D. Luffy (voice)
  • Cast Placeholder Image
    Kazuya Nakai
    Roronoa Zoro (voice)

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