|Ope Ope no Mi|
|Romanized Name:||Ope Ope no Mi|
|English Name:||Op-Op Fruit|
|Usage Debut:||Chapter 504; Episode 398|
The Ope Ope no Mi is a Paramecia-type Devil Fruit that allows its user to create a spherical space or "room", where the user has complete control over the placement and orientation of the objects inside, making the user a Free Modification Human (改造自在人間 Kaizō Jizai Ningen?). "Ope" comes from the word "Operation", as the space the user creates is compared to an "operating room" and the user to a surgeon. In the Viz Manga and FUNimation subs, it is called the Op-Op Fruit. It was eaten by Trafalgar Law.
Strengths and WeaknessesEdit
The Ope Ope no Mi allows the user to manipulate anything within a specific area, such as people, cannonballs, and ships in what was described as a "surgical" manner, within a spherical territory bordered by a light blue aura. Through this ability, Law can dismember people from a distance without harming them, lift or displace objects of any size and switch peoples' "hearts", which is shown to effectively switch minds. From its first appearance, Law developed this ability to a great extent over the timeskip as now his "Room" covers a much larger area than it did before. He is also able to move himself inside this area at will. 
Apparently, after switching people's minds, only Law himself can reverse it, but the recipients' bodies must be present in order for him to restore them back to the original bodies. In the case of switched "souls", Devil Fruit powers are maintained within the original body, while voices and other abilities, such as Haki, go along with the switched mind/soul, as seen when Sanji used his Kenbunshoku Haki in Nami's body, due to Haki originating from the individual's spirit.
He can also attach separated parts in any manner he sees fit, such as sticking someone's head to a barrel. People separated by this ability are not killed and can still feel their separated parts, regardless of the distance (much like Buggy when he separates himself using the Bara Bara no Mi). Separated parts can be reassembled back to normal. However while separated they can be temporarily assembled in mixed up ways or "attached" onto other surfaces, including someone else's body. He has also demonstrated being able to apply his ability for medical purposes, as seen when he cured the giant children from their addiction brought by Caesar's drugs.
In other words, he can cut through flesh and bone without actually hurting the victim. However, when the power is used on an inanimate object, the power will act as a normal cut, as seen when the SAD gushed out of the container that Law destroyed. The effect persists even after Law disengages the sphere.
Apparently, victims with Devil Fruit powers still retain said abilities after being cut into pieces by Law, but only parts with "conscience" (i.e. the head) seem to be able to access them while in this state. It also seems that he can switch people's places in his "Room", as he did with Jean Bart and Bepo to protect the latter from a Pacifista in the anime. He is also able to generate electrical charges like a defibrillator. Internal organs removed by this ability will become vulnerable and unprotected.
A drawback to the fruit is that the user of the Ope Ope no Mi can only use its powers within a specific area, so if the target moves outside the area, they are immune to its powers. It appears that Law has to make hand gestures to use certain attacks. Furthermore, while Law can control everything within a particular area, if he is not focused on an opponent they can still move freely, as seen when Vergo was able to retrieve Law's heart while he was distracted. In order for Law to swap objects or people inside the Room, there must be an object to swap with. It was also hinted by Smoker that a Logia's intangibility may offer some level of protection from the fruit's powers, since he was seen confronting Law head-on in partial smoke form without having any part of him jumbled up. However, it seems that if a Logia user has a part of them severed by Law's power, then that part of them becomes independent of their own respective Devil Fruit power; this means that it can be harmed without the Logia fruit protecting it from damage, as seen when Caesar killed Monet (a Logia user) by stabbing her heart, without the use of Haki or Seastone.
In addition, Smoker also strongly insinuated that sufficient proficiency with Haki may offer some resistance. But in spite of this, Law was able to dismember Vergo in half even after the Marine Vice-Admiral invoked Haki throughout the entirety of his body, implying that Law's skill has surpassed Vergo's. A major weakness is that the more he uses the fruit's power the more it depletes his stamina. Other than this, the Ope Ope no Mi has no other revealed weaknesses aside from the standard Devil Fruit weakness.
Devil Fruit users who have been split by this power will still feel the effects of seawater if one of their body parts have been submerged. It should be noted that when Law creates his "Room", it spreads out with himself in the center and remains in that location until Law dismisses it, indicating that the user may not be able to move "Room" once created.
Law typically uses his Devil Fruit powers together with his swordsmanship, making his sword a "scalpel" of sorts while his powers are active. It was stated by Smoker that the territory generated by Law marks the range of how long Law can strike targets from afar. He generally uses the warping aspect of power to his advantage, at both in and out of battle, to help obtain things that are otherwise beyond his physical reach. He can also use the fruit's powers to aid him in his medical operations, for example by cutting his patients into pieces so as to methodically remove undesirable objects or substances from their bodies.
In the anime, he cut his surrounding into pieces and used the debris as projectile weapons.
The Ope Ope No Mi makes Law well-suited at fighting long-range battles, since he is practically at full control of an area where anything can happen for as long as his powers are active. However, he is just as formidable in close-range combat, having defeated Vice Admiral Smoker in this manner, and then later one of the Yeti Cool Brothers using an offensive contact technique.
- Room (ROOM（ルーム） Rūmu?): Law creates a spherical space around his targets, in which he can manipulate anything he wants in a variety of ways. This was first seen used against some Marines during the escape from the Human Auction House. He can hold the activation of his Room by creating a small circle around his hand  which later will expand to form the Room itself. Law can also teleport himself in a "Room" by changing places with a nearby object.
- Shambles (シャンブルズ Shanburuzu?): Within the space created from Room, Law can separate anything he wants into pieces with his sword and rearrange them to his likings, including people. He can also switch the places of any object inside the space. An example is when he switched a decapitated Marine's head for a cannonball coming towards him, attaching the ball of iron back to where the Marine's head used to be. This was first seen being used against some Marines during the escape from the Human Auction House. Interestingly, it is shown that he can bring objects to himself without the need for switching with another object. During his confrontation against the Straw Hat Pirates, Law showed that he can use this technique to swap non-physical items such as minds, effectively putting one person in another one's body, though before he can do this he needs to do a thrust motion at each person, to bring their "heart" out, although if the 'hearts' are already not in the original body he simply needs to make a gesture without the thrusting motion. In the case of Tashigi, switching hearts made her lose consciousness. He can also use this move to switch himself with other objects in order to dodge attacks or travel. He later used this attack to bring Franky and Chopper back to their original bodies.
- Takt (タクト Takuto?): Law uses his ability to levitate an object within his Room. To use this technique, Law performs a lifting motion with his index finger (by pointing upwards). This technique is first seen being used against the G-5 Marines, and is powerful enough to lift a battleship and some of the water it was in, into the air. He can also use Takt to raise stone thorns from the ground to impale his enemies.
- Scan (スキャン Sukyan?): Law scans people inside his Room by imbuing his sword with the fruit's energy and beaming it through the crowd. This allows him to see the location of any items on the scanned people, selectively switching away any items they may have on their person. It was first used to steal all the Den Den Mushi from a group of G-5 Marines.
- Mes (メス Mesu?, literally meaning "Scalpel"): Law strikes his opponent in the chest with his bare hand, causing their heart to fly out of their body, encased in a glass-like cube. This attack leaves a square shaped hole on the opponent's body where the heart was and presumably tires the victim in some way, since Smoker panted heavily after Law succeeded at depriving him of his heart, although it does not seem to kill the victim. It was first seen being used on Smoker. Squeezing or beating the heart-cube inflicts great pain and internal damage on the victim, making this technique suitable for controlling people. Puncturing the heart will cause instant death. Mes does not require Room to be invoked before usage, unlike Law's other attacks. In the FUNimation subs, it is called Scalpel.
- Counter Shock (カウンターショック Kauntā Shokku?): Law places both of his palms onto his opponent's chest and releases a strong electrical surge like a defibrillator. This technique was strong enough to defeat Scotch. This is the only direct offensive technique that Law has used so far, which can cause his opponents severe damage. He can also use just his thumbs for this technique as shown in his battle with Vergo. It does not require Room to be invoked before usage, unlike Law's other attacks.
Video Game-only AttacksEdit
- Emergency (救急（エマージェンシー） Emājenshī?): A technique only used in the video game One Piece: Gigant Battle! 2 New World. While down on one knee, Law teleports himself from one side to the other of the Room. Although in his fight against Fujitora and Doflamingo, he used his teleport in a similar way, rapidly switching places with all manner of objects to cross a huge distance with Caesar in much less time.
- Catastrophe (カタストロフィ Katasutorofi?): A technique only used in the video game One Piece: Gigant Battle! 2 New World. In the space created from Room, Law cuts those within many times, then finalizes it by displacing the victim's head with a cannonball.
- The powers of Ope Ope no Mi are essentially an inversion of the powers belonging to the Bara Bara no Mi; with Law splitting everything else instead of himself (though it is revealed that Law can utilize the power on himself, as he did with his own heart).
- This is the first Devil Fruit used by a Supernova to be named (other than Luffy's), 158 chapters after its first appearance.
- Counter Shock is similar to Enel's technique Vari, albeit without specifying the voltage.
- This ability, like the Hobi Hobi no Mi and the movie-only Kachi Kachi no Mi, seems to have two seemingly unrelated abilities: the ability to manipulate anything within a specific area and the ability to generate electric shocks. Although this "shock" could be not actual eletricity, but a representation of the effects.
- Surgery - Wikipedia article on the concept the fruit's power revolves around.
- Operating Theater - Wikipedia article on the type of room Law's Room is based on.
- Dissection - Wikipedia article on one of the applications of the fruit's power.
- Defribulation - Wikipedia article on the concept Law's Counter Shock is based on.
- Amputation - Wikipedia article about the main usage of the fruit's power.