Zoro is a master swordsman, and he is one of the few people in the world who can use all three types of Haki. He can also imbue his swords with Conqueror’s Haki—which puts him at a completely different level of skill and strength. He would be able to combine this Haki with several Devil Fruit powers.

10Onigumo’s Devil Fruit Would Give Zoro More Arms To Fight With

• First Used In Episode 308 Of The Anime
• Vice Admiral Onigumo Is The Only Known User

Onigumo is a Marine vice admiral who appeared during the Enies Lobby Arc, and he showcased a currently unknown Zoan-type Devil Fruit that allows him to transform into a spider or human-spider hybrid. This may not seem like the kind of power Zoro would want, but it would make him a deadlier fighter.

This Devil Fruit would allow Zoro to grow three pairs of spider-like arms. With such a power, Zoro would be able to wield nine swords at once instead of three. He would be able to create a new Nine Sword Style. Zoro could gather more high-quality blades, and he could imbue each of them with Haki.

9The Arms-Arms Fruit Would Allow Zoro To Every Type Of Bladed Weapon

• First Used In Episode 608 Of The Anime
• Baby 5 Is The Only Known User

Zoro has lost several swords over the years, but if he had the Arms-Arms Fruit, he would always have a blade at his disposal. This Paramecia would give him the ability to turn any part of his body into a weapon. If he wanted to, Zoro could turn his hands or arms into fully functional firearms, but he would prefer to create swords and other bladed weapons instead.

Zoro could turn his arms into razor-sharp blades, and he could do the same thing to his legs. If he wanted to, he could turn his entire upper body into a large sword, but that might be a bit impractical. He would also be able to imbue all of his blade arms with Armament or Conqueror’s Haki.

8The Chop-Chop Fruit Would Make Zoro Immune To Cutting Attacks

• First Used In Episode 8 Of The Anime
• Buggy The Clown Is The Only Known User

Buggy may be cowardly and weak, but he possesses a very useful Devil Fruit. The Chop-Chop Fruit gives its user the power to split their body into pieces that they can control. This power is great for sneak attacks and backstabs, but that is not Zoro’s style, so he would likely never use it in such a way.

If Zoro were to eat the Chop-Chop Fruit, he would become immune to every form of cutting and piercing attack. The user will be able to completely avoid a slash even if it is imbued with Haki. Not even Mihawk would be able to cut him, but Zoro would still be able to injure him.

7The Rust-Rust Fruit Can Be Used To Destroy Any Sword In The World

• First Used In Episode 309 Of The Anime
• Captain Shu Is The Only Known User

The Rust-Rust Fruit also appeared during the Enies Lobby Buster Call, and it was used to destroy Yubashiri—one of the 50 Skillful Grade Swords. It was also the sword that Zoro obtained in Loguetown. As its name suggests, this Paramecia gives its user the power to rust metallic objects.

This power works with direct physical contact, and as a result, the user is immune to swords and other metallic weapons. Once they touch a sword, the weapon will immediately rust and disintegrate. With this power, Zoro can counter every swordsman he faces, and he can theoretically destroy any sword, even if it is imbued with Haki.

6The More-More Fruit Would Enhance The Speed & Strength Of Zoro’s Attacks

• First Used In One Piece 3D2Y Anime Special
• Byrnndi World Is The Only Known User

The More-More Fruit appeared in a One Piece filler special, but just because it is a non-canon power does not mean that Zoro cannot benefit from it. It allows the user to amplify the size and speed of any object they touch. These physical traits can be amplified up to 100 times.

The user can amplify their own speed as well, and in doing so, the force behind their attacks becomes even greater. With this power, Zoro would be able to overpower other swordsmen during a clash. His opponents may not even be able to keep up with the speed of his attacks.

5The Op-Op Fruit Would Allow Zoro To Cut With Surgical Precision

• First Used In Episode 389 Of The Anime
• Trafalgar D. Water Law Is The Only Known User

The Op-Op Fruit gives its user the ability to manipulate the fabric of space within a designated spherical area. The user can teleport around the area and control every object within the area. They can also disassemble and reassemble objects however they want. This is why the Op-Op Fruit is considered one of the strongest Devil Fruits in One Piece.

With the Op-Op Fruit, Zoro would be able to slice through his enemies with surgical precision, and he would be able to do this from afar. Zoro was able to cut off one of the horns of the Skull Dome during the Onigashima raid, but with the Op-Op Fruit, he would be able to cut an entire island in half if he created a large enough area.

4The Strong-Strong Fruit Would Give Zoro Superhuman Strength

• First Used In Episode 1063 Of The Manga
• Jesus Burgess Is The Only Known User

The Strong-Strong Fruit is currently in the possession of Jesus Burgess of the Blackbeard Pirates, and it suits him very well. It is a Paramecia that boosts its user’s physical strength to superhuman levels. With this strength, someone like Zoro would be able to effortlessly lift and throw gigantic objects.

Zoro puts a lot of strength behind his attacks, and if he had the Strong-Strong Fruit, his attacks would be even more fierce—especially if he were to combine that strength with his advanced Armament or Conqueror’s Haki. Depending on the opponent, Zoro would probably be able to break whatever sword he clashes with.

3The Tremor-Tremor Fruit Would Allow Zoro’s Slashes To Produce Powerful Quakes

• First Used In Episode 461 Of The Anime
• Has Been Used By Edward Newgate & Marshall D. Teach

Following Gol D. Roger’s death, Whitebeard was considered the strongest pirate in the world, and he held onto that title for years thanks to his Haki and Devil Fruit power. The Tremor-Tremor Fruit allows its users to create powerful quakes through any medium, including the air. This ability allegedly has the power to destroy the entire world.

The user can focus these quakes into their fists like bubbles, but they can also focus quakes into their weapons. If Zoro could do this, his sword attacks would be far more deadly. He would likely be able to instantly shatter his opponent’s sword, and his flying slashes would be able to destroy entire islands.

2Urouge’s Devil Fruit Would Convert Any Damage Zoro Sustains Into Strength

• First Used In Episode 401 Of The Anime
• Urouge the Mad Monk Is The Only Known User

Zoro tends to take a lot of damage when fighting strong opponents in one-on-one bouts, but if he had Urouge’s Devil Fruit, he would be able to take advantage of that damage. This unnamed Paramecia gives its users the power to convert any damage they sustain into physical strength.

Once activated, this power will cause the user’s body to enlarge and their muscles will expand. Zoro sustained immense damage during the Onigashima raid, and if he had been able to convert that damage into strength, he probably would have been able to defeat King a lot easier. Zoro will likely sustain damage when he duels Mihawk again, so this Devil Fruit power would be helpful.

1The Dice-Dice Fruit Would Allow Zoro To Turn Any Part Of His Body Into A Blade

• First Used In Episode 103 Of The Anime
• Has Been Used By Daz Bonez & S-Hawk

One of Zoro’s defining moments came when he defeated Daz Bonez, a former bounty hunter who possesses the Dice-Dice Fruit. This Paramecia gives its user the ability to turn any part of their body into a razor-sharp steel blade. These blades can cut through almost anything.

If Zoro had this power, his body would be immune to most slicing attacks, but he could still be hurt by attacks that are strong enough to cut through steel. This would be very helpful for Zoro, especially when fighting other master swordsmen. One Piece creator Eiichiro Oda himself has stated that if Zoro were to have a Devil Fruit, it would be the Dice-Dice Fruit.