The Atsu Atsu no Mi is an anime-only Paramecia-type Devil Fruit that gives the user the ability to produce and control vast amounts of heat, making them a 10,000 Degree Human (１万度人間, Ichiman Do Ningen?). It was eaten by Don Accino.
The Gura Gura no Mi is considered the strongest Paramecia devil fruit of all for its absolute destructive powers. Whitebeard earned the title of the “Strongest man in the world” with this devil fruit.
Mythical Zoans are the rarest type of Devil Fruit, even more so than Logias. Artificial - Artificially created Zoan Fruits that cause the user to permanently take on an animal characteristic; though, much more rarely, the user becomes able to transform at will.
One Piece shows a new awakening of a Zoan-type Devil Fruit, confirming that Luffy's version of this rare and powerful ability is absolutely unique.
The Mizu Mizu no Mi (lit Water Water Fruit) is a Logia-type Devil Fruit that allows the user to control and become liquid water.
Although the exact number of devil fruits is unknown, there are more than 100 devil fruits spread out across the world. Each of them has a distinct power, and none of them has duplicates.
The Hito Hito no Mi, Model: Nika is a powerful Mythical Zoan type of Devil Fruit that holds legendary status in the One Piece world. This fruit was only recently introduced to the fans in the story when Luffy fought against Kaido in Wano Country.
Roger used advanced forms of conqueror's haki as he imbued his sword with conqueror's haki and clashed with Whitebeard. He also used advanced armament haki for more powerful sword attacks. Additionally, Roger possessed the observation haki, thus, making him the strongest haki user of all time in One Piece.
And then later on he ate the two fruits and cuz of his sleeping disorder the two devils wouldn't fight each other.
The Hito Hito no Mi, Model: Shinigami is a Mythical Zoan-type Devil Fruit that allows its user to transform into a Shinigami (Death God/Grim Reaper) at will. It was eaten by Dinquixote Murphy, a former captain of the Marines and is his second Devil Fruit ability.
One of the Mythical Zoan-type Devil Fruits, the Hito Hito no Mi, Model: Daibutsu was eaten by Sengoku, the former Fleet Admiral of the Marines. This fruit gave him the power to turn into a giant Buddha at will. The most fearsome power of this fruit is its ability to emit shockwaves, which makes it unique.
In the 98th volume of One Piece, Oda answered a fan question about what Devil Fruits would fit Nami, Zoro, Sanji, Usopp, and Franky best. Nami's Fruit is the Rumble Rumble Fruit, which lets its user wield the power of lightning.
During Sanji's cooking battle in a Loguetown Arc filler episode, it was mentioned that some fish species that should not exist in the East Blue were found due to ocean currents, which made Sanji certain that the All Blue exists.
Zoro can eat 3 devil fruits.
Blackbeard is the only character in One Piece with two Devil Fruits. How did he do it? Marshall D. Teach, better known by his epithet, is arguably the most dangerous living pirate in One Piece.
It is widely known that each Devil Fruit is unique and, as long as its user is alive, there cannot exist another with the same ability in the world.
The Mugen Mugen no Mi is a Paramecia-type Devil Fruit that allows the user to create an infinite supply of anything. In the Viz Manga, 4Kids, and FUNimation dubs, it is called the Infinite-Infinite Fruit.
The Sugi Sugi no Mi, coming from "suigin," Japanese for mercury, is a Logia type Devil Fruit which allows the user to dissolve entirely into a pool of quicksilver. This fruit was eaten by Marine Admiral Calomel.
Ningyo Ningyo no Mi, model: Mermaid(lit. Merfolk-Merfolk Fruit, model mermaid) is a Zoan-class Devil Fruit that allows the user transform partially or fully into a mermaid.
All Devil Fruit eaters lose their ability to swim after consuming the Devil Fruit. It's not just a loss of muscle memory; entering a body of water saps them of all energy. Even entering a bath can drain a Devil Fruit eater of energy and prevent them from using their abilities.