Jiki Jiki no Mi

The Jiki Jiki no Mi is a Paramecia-type Devil Fruit which allows the user to manipulate magnetic forces. It was eaten by Eustass Kid.

Etymology

 * Jiki (磁気) is Japanese for "magnetism".

Strengths and Weaknesses
The main strength of this fruit is that the user can manipulate metal through magnetic force, using it to attract or repel metal objects in relation to their person. The user's magnetism is symbolized by sparks generated by their body. Once active, the user becomes capable of levitating metal objects towards or away from themself.

This fruit grants a massive advantage against users of metal weapons, which includes the vast majority of weaponed fighters in the series. Projectiles like cannonballs are left ineffective since they can be just repelled away and usage of guns and swords becomes risky due to the user having the ability to steal them away through magnetic attraction. As long as the user has enough metal in their vicinity, they are able to attract it and then combine the collected metal into larger constructs to aid in their fighting style.

The magnetism can also help with the user's mobility. Aside from pulling and pushing metal in relation to their body, the user can seemingly do the inverse as well, letting themselves get pulled towards a source of metal instead through levitation, essentially granting a limited form of flight.

The main weakness of the fruit seems to be its dependence from the surrounding environment, which must contain metal in order for the fruit's powers to be used. Kid implicitly confirmed this disadvantage before tackling Kaido and Big Mom at Onigashima, having to spend some time running around enemy territory in order to search and gather enough metal resources for the upcoming fight. Other than that, the user is affected by the standard Devil Fruit weaknesses.

Usage
Kid usually manifests two different abilities through his Devil Fruit, both depicting repulsion and attraction of metals within his vicinity to be used as weapons. The first allows him to repel metallic objects away from himself, such as reflecting a cannonball back towards its shooter. The second ability allows him to draw metallic objects towards him and then form them into larger constructs, his most frequent use of this being to form a giant arm made of hundreds of metallic weapons and objects and connecting it to his right hand.

Kid appears to have excellent control over his Devil Fruit when it comes to creating large metal constructs, shaping random metallic objects into functioning limbs, tools and weapons in seconds and with no apparent difficulty. After losing his right arm to Shanks, Kid was able to successfully rebuild a prosthetic himself through his ability, further rebuilding it in case it gets destroyed. Kid is apparently enough of a talented engineer to even create fully functioning robotic golems, of which actions he is able to control through his powers.

Techniques

 * Repel: Kid holds out his open-palmed hand in front of a metal object approaching him and repels it back in the direction it came from. Kid can also repel a person if he covers a portion of their body in metal (which can include even his own prosthestic arm) beforehand, letting the repelled metal covering push them away. This attack was first seen at the Human Auction House where he repelled a Marine cannonball at high speed back toward the shooters.




 * Punk Rotten: Kid attracts a large quantity of metal from his surroundings and shapes it in the form of a gigantic skull-faced demon-like golem made of scrap. The demon is composed of a floating torso with two disembodied arms, with Kid seating himself on its back and controlling it from there. Because it is made of random pieces of scrap metal, the demon can break down and be rebuilt as many times as Kid wants with his magnetic abilities, without major consequences to him. This attack was first used to destroy a ship of the Beasts Pirates in conjunction with Monkey D. Luffy and Trafalgar D. Water Law, although it was kept unseen at the time. Punk Rotten only truly debuted during the rooftop fight against Kaido and Big Mom. The name of the technique may be inspired by Johnny Rotten, lead singer of the late-1970s British punk rock band Sex Pistols.
 * Punk Vise: After forming Punk Rotten, Kid makes the golem crush a target with both hands. This attack was first seen in use against Kaido. Since both "Vise" and "Vice" are rendered the same in katakana (ヴァイス), the technique's name may be inspired by the British punk rock band Vice Squad.
 * Slam Gibson: Kid uses his golem's arms to grab his opponent and slam them to the ground. As deducted from the name, this move may be a reference to guitar smashing, a common practice for rock musicians on-stage. It was first used against Kaido.




 * Punk Gibson: Kid attracts metal pieces to his right arm to form a massive, makeshift arm. He then leaps into the air and slams his open metal palm into his opponent, crushing them. This attack was first seen used against Scratchmen Apoo on Onigashima. Its name may be inspired by Gibson, a US manufacturer of guitars.
 * Punk Pistols (ピストルズ): Kid forms a giant harpoon gun out of metal pieces around his right arm, from which he is capable of rapidly firing metal spears at a target akin to a Gatling gun. It was first used against Big Mom, but the move failed since the spears could not pierce through her incredibly tough skin. Its name may be inspired by the British punk rock band Sex Pistols.

Video Game-Only Techniques

 * Genocide Raid (ジェノサイド・レイド): A technique in the video game One Piece: Gigant Battle! 2 New World, Kid creates a vortex of metal pieces around the enemies that seem to both shock and pummel them at the same time, knocking them off their feet.

Trivia

 * Among named fruits, this one currently has the longest gap between when its power was first shown and when it was named, at just 19 days shy of 13 years. 510 chapters were released between its usage debut and when it was named in the SBS.
 * When using his Devil Fruit ability, purple electrical sparks emit from Kid's hands, so his ability may resemble an electromagnet.