Supreme Grade Blades: The Pinnacle of Swordcraft in One Piece
Few shonen universes rival the creative intensity of One Piece when it comes to weapons. While Devil Fruits and unique martial arts grab headlines, nothing electrifies fans quite like the legendary clashes between master swordsmen. At the summit of this world stand the 12 Supreme Grade Blades (Saijo O Wazamono), blades of almost mythical legacy and unmatched power, forged centuries ago with secrets lost to time. Although only a handful of these rare weapons have surfaced in the manga, their influence on the story and on fans’ imaginations is enormous.
What Makes a Supreme Grade Blade?
Excellence in the world of One Piece weaponry is measured by more than sharpness. These blades are the result of peak craftsmanship—remarkably durable, incredibly sharp, and able to absorb the intense back-and-forth of Haki duels without suffering a scratch. With their origins shrouded in ancient lore, even among top-tier pirates and marines, they’re the ultimate symbols of status and combat might.
The Confirmed Supreme Grade Blades: Who Wields Them and Why They Matter
5. Yakuza Kasen (Wielded by Issho – Fujitora)
At first glance, Admiral Issho’s blade, Yakuza Kasen, appears deceptively modest—a simple cane sword (shikomizue) that assists the blind admiral in everyday life. But under its unassuming exterior hides a Supreme Grade weapon officially confirmed by the series creator. Rather than focusing on precision swordplay, Fujitora channels his Zushi Zushi no Mi gravity powers through the blade, summoning meteorites and manipulating gravitational forces during battle. The Yakuza Kasen’s durability is unquestionable, surviving the astronomical friction of dragging asteroids to earth and remaining unscathed throughout. However, in lore and swordsmanship, it still sits below the most iconic blades, more a conduit for his Devil Fruit than a centerpiece of sword legend.
4. Murakumogiri (Wielded by Edward Newgate – Whitebeard)
While swords dominate the Supreme Grade category, Whitebeard’s Murakumogiri stands tall—literally—as a colossal naginata. This polearm amplifies the power of the Tremor-Tremor Fruit, letting Whitebeard send shockwaves across oceans and devastate marine forces during the pivotal war at Marineford. Murakumogiri isn’t just a match for foe’s weapons—it shrugs off magma from Admiral Akainu, blocks the mighty John Giant, and never shows wear even after years of epic clashes. Though it lacks the finesse of cursed swords or black blades, its legacy as a harbinger of quakes is secure among One Piece’s most feared arms.
3. Ace (Wielded by Gol D. Roger)
Ace is the simplest-looking Supreme Grade blade, but appearances deceive. The Pirate King wielded it to rewrite history, relying solely on his own overwhelming Haki rather than Devil Fruit trickery. When Roger and Whitebeard clashed weapons, their Haki-infused blows split the heavens—no small feat. That Ace’s impact still resonates is clear; Roger named his son after the blade, cementing its mythic status. Though Ace’s whereabouts after Loguetown remain a mystery, its place in the legend is undeniable.
2. Shodai Kitetsu (Wielded by Ethanbaron V. Nusjuro)
The Kitetsu swords are notorious among fans for their deadly, cursed nature. Shodai Kitetsu—the most dangerous tier—now sits in the hands of Saint Ethanbaron V. Nusjuro. This blade lives up to every bit of its hype: devastating precision, chilling power, and an aura of doom for all but the mightiest wielders. During the Egghead Island events, Nusjuro’s simple, lightning-fast draw sliced through advanced Pacifistas and froze their mechanisms in place, reflecting his monstrous Haki as well as the curse’s legacy. Even though Shodai Kitetsu hasn’t become a black blade, its risk-outweighs-reward edge pushes it near the very top.
1. Yoru (Wielded by Dracule Mihawk)
At the apex stands Yoru, as dark and enigmatic as its master. Dracule Mihawk, the world’s strongest swordsman, makes a formidable pair with this cruciform behemoth. What sets Yoru apart isn’t just its size or presence—it is a black blade, hardened not just by skill but through relentless application of Armament Haki until the blade itself changed. This imbues Yoru with unheard-of resilience and lethality, letting Mihawk casually cleave frozen tidal waves or bisect pirate ships with a flick of his wrist. Unlike other supreme blades, Yoru’s might isn’t only a function of its wielder’s strength—it’s a blade that makes legends out of those who dare master it.
Room for Theories: The Unrevealed Supreme Blades
The mystique around the 12 Supreme Grade Blades remains, with only five confirmed so far. Fan speculation runs wild about who else might hold one—figures like Shanks, Rocks D. Xebec, Figarland Garling, Admiral Ryokugyu, and even Imu are at the center of intense fan theories. Until the story unveils the rest, these five stand as the definitive champions of legendary steel, each weapon as memorable as the titan who wields it.
