Kokuto Yoru (aka Black Blade Yoru) is currently the strongest sword in One Piece. It is befittingly in the hands of the greatest swordsman in the world, Dracule Mihawk. Yoru is graded as one of the 12 Supreme Grade swords, the highest quality swords ever created in the One Piece universe.
Either a) by the same logic Shusui is technically a grade weaker than Enma, Zoro would still have a weaker blade in Enma than Mihawk's Yoru and WB's Murakumogiri, both blackened Saijo O Wazamono swords, which should be stronger than blackening an O Wazamono sword like Enma.
Shimotsuki Ryuma was a legendary, world-famous samurai hailing from the Shimotsuki Family of Wano Country, who lived during Wano's "Country of Gold" era centuries ago. He was revered for his mastery of swordsmanship that earned him the title Sword God, as well as his feat of slaying a dragon.
Zoro's Strongest Swords in One Piece - Wado Ichimonji, Shusui, and Enma. Zoro has been wielding a sword since time immemorial, and he has owned a fair share of them. The strongest of these swords are the Wado Ichimonji, Shusui, and Enma.
Takemikazuchi (建御雷/武甕槌) is a deity in Japanese mythology, considered a god of thunder and a sword god.
1. Miyamoto Musashi—Japan's Sword Saint.
What is Zoro's weakest sword? Out of the swords he currently owns, the Sandai Kitetsu is the weakest blade in his arsenal.
It was formerly wielded by Kozuki Oden and was passed on to Kozuki Hiyori, his daughter, after his death. This sword was then given to Roronoa Zoro in exchange for Shusui. While the sword is certainly not a Supreme Grade sword yet, it also hasn't blackened.
The highest grade swords are called Saijō Ō Wazamono. The swords belonging to this category are the rarest. It is followed by Ō Wazamono, Ryō Wazamono, and Wazamono.
Locations: Loguetown. God Valley. Skypiea (Upper Yard)
In the anime, Luffy managed to use it to cleanly cut through multiple swords with great ease despite his lack of skills. Like all of the swords crafted by members of the Kitetsu school, this one is said to be cursed and will bring a horrible death to all of its owners.
He uses the Nidai Kitetsu when he faces Basil Hawkins, to which Luffy threw a punch with the sword in his hand. The Nidai Kitetsu (trans. "Second Generation Ogre") is a cursed sword that supposedly brings a horrible death to its users.
Dressrosa Arc
After he saw it, Kin'emon became determined to challenge Zoro so the sword could be returned to Wano Country. While at a restaurant in Acacia, Shusui was stolen by a dwarf named Wicca. Zoro caught the dwarf and reclaimed his sword.
Zoro with Enma and his two other swords is stronger than Zoro with Shusui and his two other swords. Zoro with Enma basically gave him a buff with being able to cut things more deadlier with the power of Enma along with his Haki, but Enma wasn't in his full control like he was with Shusui.
Actually not just 1, he can eat 3 devil fruits.
Zoro set out on his journey to becoming the greatest swordsman in the world by defeating Dracule Mihawk, the man who currently sits on the stone. Over the years, he has come a long way and become one of the strongest pirates on the seas. Zoro has attained terrific strength, but he does not rely on a Devil Fruit at all.
In fact, Nami has already demonstrated abilities similar to Haki. During the Alabasta Saga, she has shown the ability to tell even the slightest of changes in weather which, according to Vivi, is beyond human comprehension.
Dracule Mihawk is Zoro's biggest rival, being the man who holds the title of the World's Strongest Swordsman. Mihawk is extremely skilled with the blade and his swordplay is described as very aesthetic. He is also extremely good at using Haki given that he taught its usage to Zoro.
Later, in the fight against King, Zoro used Conqueror's Haki to tame Enma completely. Eventually, Zoro managed to coat all his swords in what appears to be the advanced form of Conqueror's Haki, making him one of the strongest swordsmen in the story now.
It's entirely possible Mihawk noticed through their duel and training that Zoro suffers from ocular dominance in his left eye. That is to say, the left eye is stronger than the right. As a result, maybe Mihawk scarred the left eye shut and instructed Zoro not to open it until his right eye was trained enough.
He is the crew's combatant, and one of the two swordsmen of the Straw Hat Pirates, the other being Brook. He is also known as the vice-captain of the Straw Hat Pirates as he was the 1st to join the Straw Hat Pirates and he is the second strongest member of the crew after Luffy(Captain).