Summary
Devil Fruits are the biggest source of power in theOne Pieceworld, and nearly every major fighter in the story relies on their power.These fruits are also known as the treasure of the seaas they grant terrific power to those who eat them — but, at the same time, they take away their ability to swim.
Related:One Piece: Every Straw Hat Pirate, Ranked By Their Designs
While Devil Fruits are certainly useful, not every amazing power displayed in the series revolves around their usage. In fact, there are several powers that stand out on their own. From haki to specialized martial arts and plenty of other techniques, here are some of the most powerful non-Devil Fruit powers the anime has shown.
Updated on July 19, 2025, by Rei Penber:Devil Fruits from the main power system in the One Piece world, however, this world is so diverse that there are many other powers forms that are also equally as amazing. In fact, one can reach the pinnacle of strength in the world of One Piece without even relying on the very primary power system in the entire series. There are quite a lot of diverse powers in the One Piece world, a lot of which have already been mentioned in this list. However, there are many others that are strong in their own right and deserve mention as well. With that, this list has now been updated.

This list is in no particular order.
16Electro
Electro is a very strong power that is unique to the people of the Mink Tribe. The Mink Tribe, known to live on the back of the elephant Zou, is incredibly powerful, known to be warriors from birth. They can utilize electro, which allows them to charge up their attacks with electricity. This electricity is of a very high voltage and can do tremendous damage to the enemies.
Even fully grown adults can be defeated by kids of the Mink Tribe and that just goes to show how strong the power of electro is. Fans have seen even stronger usage of it by the likes of Inuarashi and Nekomamushi during the war of Wano and it is safe to say that this power was strong enough to wound even Kaido.

15Colors Trap
Colors Trap is a very rare ability in the world ofOne Piecethat is quite inexplicable, simply put. Fans do not know where this power originates from, however, it does not come from a Devil Fruit ability. It simply sees Ms. Golden Week paint different colors near her enemy or directly on their body somehow.
Based on what color she uses, the target is forced to feel a particular emotion. They can either laugh uncontrollably, be sad, or showcase any other emotion that the user of the Colors Trap wants them to show. This is a very dangerous ability to snap out of and even Luffy, who is incredibly powerful, fell victim to it.

14Fishman Jujutsu
Fishman Jujutsu is an extremely rare art and theOne Pieceworld. Akin to Fishman Karate, it is quite powerful. Fishman Jujutsu sees this incredible race make use of their tremendous skill underwater and grab the ocean and throw it over their shoulders. This style is practically based on grabbing water and throwing it in combat.
Jinbe has made extensive use of it in combat, as has Hody. Of course, the proficiency that one has in the skill depends on their level of skill overall. Jinbe is likely the very best user of this fighting style that fans have seen in the entire series. His techniques, such as Kairyu Ipponzai, are some of the most dangerous seen inOne Piece.

13Merman Combat
Merman Combat is very similar to Fishman Jujutsu. These are two forms of the same power. The only difference is that one is utilized by Fishmen while the other is utilized by Mermen. The Mermen seen in theOne Pieceworld utilized this power with great finesse.
The fans have seen King Neptune, and Prince Fukaboshi, among others, utilize this power. While not many techniques have been revealed, fans have seen an ability known as Ultramarine being used and it is certainly quite powerful. The Ryugu Family has showcased several abilities as a part of the Merman Combat over the years and fans know just how dangerous these water manipulation powers are.

12Ninjutsu
Ninjutsu is a form of fighting that exists only in the land of Wano. There are several different ninjas that exist in the Wano Country that make use of ninjutsu. Some of these ninjutsu don’t appear to be real and are simply tricks, such as those utilized by the Orochi Oniwabanshu.
However, there are some others that are actually somewhat real, such asthe clone technique used by Raizo.This is a fighting style that is quite underrated in theOne Pieceworld, however, it is still very impressive. While it might not be the strongest of all, fans absolutely love it being used since it diversifies the different types of fighting styles in the One Piece world.

11Jio-Ken
Jio-Ken is amartial arts style in One Pieceused by Lao, a member of the Donquixote Pirates. This fighting style allows even an old man like Lao G to utilize high-speed punches and kicks in combat, making him one of the strongest fighters in his arc.
The biggest asset of this power is called qigong. This allows him to balance his spiritual energy in such a way that he can store his energy and strength from his youth to use in his old age. When he used Jio-Ken against Don Chinjao, Lao G was able to completely overwhelm him in battle.

10Seimei Kikan
Also known as Life Return, Seimei Kikan is one of the most incredible powers introduced in the story so far. Although a lot of fighters appear to make use of this power, only two have been confirmed to beits users: Rob Lucciand Kumadori.
Seimei Kikan allows a person to manipulate every single function of their body effortlessly. Things like digestion, which are involuntary, can be controlled at will as well. By combining it with Kami-E, the user can manipulate their muscle mass to an incredible extent.

Seimei Kikan Users
This ability has, so far, been officially used by just twoOne Piececharacters, both during the Enies Lobby arc. The first user of the ability was Kumadori, who stated that he acquired this power of years of training and got the ability to control everything on his body, including his hair.
The other user is Rob Lucci, who combines its usage with Kami-E and manipulates his hybrid forms in combat.

9Rokushiki
Also known as the Six Powers, Rokushiki is a martial arts style that is common among the World Government officers. This style can only be awakened through intense training and only a select few can truly be called Rokushiki masters.
Rokushiki includes Tekkai (Iron Body), Soru (Shave), Geppo (Moon Walk), Shigan (Finger Pistol), Kami-E (Paper Art), and finally Rankyaku (Tempest Kick). A seventh power, called Rokuogan, is accessible only to those who have mastered all the six powers to perfection.

Rokushiki Users
A lot of Rokushiki users have appeared inOne Pieceover the years. Perhaps the most skilled users of this ability are the CP9 and the CP0 agents.
Currently, the most impressive Rokushiki user in the series is none other than Rob Lucci. TheRokuogan, a sign of the mastery of the Rokushiki, is only available to him.
8Hasshoken
The fighting style of the warriors from the Kano Kingdom, Hasshoken is a powerful ability that allows the user to control vibrations around their body. In combat, these vibrations are powerful enough to generate completely unblockable shockwaves.
Even the toughest of steel shatters with the usage of Hasshoken, as it seeps into the body and then does damage. One’s level of control over Hasshoken affects its usability quite a lot.
Hasshoken Users
Hasshoken is one ofOne Piece’s best fighting stylesthat the pirates from Kano Country specialize in. As such, most of its skilled users come from that place.
Don Chinjao was an incredible user of the Hasshoken, as is his son, Don Sai.
7Fishman Karate
Fishman Karate is yet another powerful martial arts style. This particular skill focuses on manipulating the water in one’s surroundings and producing shockwaves to do damage, making it somewhat similar to Hasshoken.
Since everyone’s body is composed of water, Fishman Karate is incredibly difficult to defend against as it penetrates the body quite easily. Even most Devil Fruit users, such as Luffy himself, have trouble defending themselves against Fishman Karate.
Fishman Karate Users
Out of all the Fishmen seen in the series, the helmsman of the Straw Hat Pirates, Jinbe, is the most impressive user of this power. His skill far exceeds the like of Arlong or Hody Jones by quite a mile.
During the Wano Country arc, Jinbe showed the skill to manipulate water that was great enough to flood a country.