One Piece introduces Devil Fruits that can radically alter the human body. The Supa Supa no Mi turns flesh and bone into razor-sharp steel, creating a walking arsenal of destruction. This Paramecia-type power destroys the boundary between weapon and wielder, turning every movement into a possible killing strike.
Daz Bonez consumed this blade-generating Devil Fruit during his criminal career in One Piece. Known as Mr. 1 in Baroque Works, he later entered the Cross Guild after surviving Impel Down. His steel-body transformation earned him the title "Full-Body Bladed Human," pushing him nearly unstoppable against conventional swordsmen until Roronoa Zoro ravaged that reputation.
This awesome Devil Fruit belongs to the Paramecia classification. The name emanates from Japanese onomatopoeia, meaning the sound of clean, repetitive slicing motions. In official English translations, it's referred to as the Dice-Dice Fruit, flawlessly seizing its cutting essence.

The fruit's appearance corresponds to a cluster of bananas. Each respective segment looks like a sword blade with irregular, wavy patterns. The white portions represent the sharp edges, while darker gray sections symbolize the blunt sides of traditional blades.
Daz Bonez earns the fearsome title of “Full-Body Bladed Human” only after consuming this Devil Fruit. His mutation endows him with the ability to alter any part of his anatomy into steel blades. This power makes him virtually immune to most slashing attacks while allowing him to cut through various materials.
Before joining Cross Guild, Daz worked as an elite killer for Baroque Works under the codename Mr. 1. His reputation was built on his seemingly invincible defense against swordsmen. He claimed that no blade wielder had ever managed to scratch him until his encounter with Roronoa Zoro.
Combat Strengths in One Piece

The Supa Supa no Mi provides both offensive and defensive capabilities. Daz combines martial arts with his blade powers, creating a unique fighting style. He can sprout blades from his feet, allowing him to skate across solid surfaces as if they were ice.
His signature techniques include "Spider," where he hardens his entire body for maximum defense. "Spar Claw" transforms his fingertips into deadly cutting instruments. The “Atomic Spar” delivers devastating X-shaped slashes capable of cutting through multiple targets at once.
More advanced moves like "Spiral Hollow" turn his forearms into spinning drill-like weapons. "Atomic Spurt" combines blade-footed skating with high-speed attacks for maximum impact.
The primary advantage of this Devil Fruit lies in its versatility. Users can create blades from any body part and even generate ranged cutting attacks without physical contact. The steel-like properties provide excellent defense against conventional weapons in the One Piece world.
However, the fruit has notable weaknesses. The user cannot easily adjust the hardness of their steel blades. Any attack powerful enough to cut steel can harm the user. Daz learned this limitation firsthand when Zoro developed the ability to cut steel during their battle in Alabasta.
The Seraph Connection in One Piece

In recent One Piece developments, the Supa Supa no Mi's abilities have been artificially replicated. The Seraph known as S-Hawk possesses these powers through Green Blood transfusion technology. This artificial version allows S-Hawk to complement his natural swordsmanship with blade-generating kicks.
S-Hawk showcases techniques similar to Daz Bonez, including Spar Claw, Spiral Hollow, and Atomic Spurt. This technological advancement shows how Devil Fruit powers can be duplicated in the One Piece world.
As such, Daz Bonez's steel-blade transformation represents surgical precision meeting brute force destruction. The Supa Supa no Mi's raw cutting power carved its place among One Piece's most devastating abilities.
Scientific reproduction proves this Devil Fruit transcends its original user's mortality. Advanced Green Blood technology ensures these blade-generating powers survive beyond Daz Bonez himself.