There are hundreds of different jutsu in Naruto, but many of them can only be used by someone who possesses the right kekkei genkai. A kekkei genkai is passed down through the generations of a specific clan. In some parts of the ninja world, kekkei genkai users are feared because their unique powers. Every single kekkei genkai is lethal in some way, but certain kekkei genkai are more dangerous than others.
Many kekkei genkai are rare nature transformations that combine two of the five basic chakra natures. There are also kekkei genkai that can alter the user's physical body. Ocular kekkei genkai are especially difficult to deal with. The most dangerous kekkei genkai can cause a great deal of damage in a short time, and in some cases, a kekkei genkai can wipe out an entire ninja village.
10 Sakon & Ukon's Kekkei Genkai Can Destroy Someone's Cells
First Used in Naruto Episode 120, "Roar and Howl! The Ultimate Tag-Team!"
Sakon and Ukon were the co-leaders of the Sound Four, and they possessed a currently unknown kekkei genkai. It allowed them to break their bodies down to a molecular level. As a result, they could merge into each other's body whenever they wanted. They could also split apart at any time.
While fused together, Ukon would attack from Sakon's body. This allowed them to overwhelm other ninja with melee attacks. If this kekkei genkai is enhanced by Orochimaru's Curse Mark, the user will be able to merge with others. This is the most dangerous aspect of their Kekkei genkai because their bodies will destroy the new host's cells until they die.
9 Ice Release Can Is Very Dangerous In The Right Hands
First Used in Naruto Episode 13, "Haku's Secret Jutsu: Demonic Mirroring Ice Crystals"
Ice Release first appeared in the Land of Waves Arc, and it was the first enemy kekkei genkai that Naruto dealt with. It is a nature transformation kekkei genkai that combines Wind and Water Release. Normal ice melts when it is exposed to heat, but the ice created by this kekkei genkai can withstand Fire Release ninjutsu.
The Yuki Clan specialized in Ice Release, and they used a the deadly Crystal Ice Mirrors Technique. While active, the user can surround their opponent with mirrors made of ice. They can instantly travel between mirrors. The target cannot defend themselves properly because the Ice Release user can essentially perform ranged attacks from multiple directions at once. This type of technique is also great surprise attacks.
8 Shikotsumyaku Turns The User's Bones Into Deadly Weapons
First Used in Naruto Episode 119, "Miscalculation: A New Enemy Appears!"
The Kaguya Clan were the direct descendants of Kaguya Otsutsuki, and a few members inherited her bone manipulation ability. The Shikotsumyaku kekkei genkai is not as lethal as Kaguya's ability, but it is still deadly. It gives the user the ability to manipulate their bone structure, and they can use their cells to create new bones.
The user can grow their bones until they protrude from their body. When this happens, the user's body is safe from melee attacks because the enemy will impale themselves on the bones if they attack. A Shikotsumyaku user can fire their finger bones like bullets, and they can turn their ribs and spinal cord into slicing weapons. In rare cases, the user can summon a field of bones from the ground. This technique kills everything indiscriminately.
7 An Evolved Sharingan Possesses Deadly Abilities
First Used in Naruto: Shippuden Episode 5, "You Failed! Kakashi's Final Decision"
The Sharingan is the kekkei genkai of the Uchiha Clan, and it will awaken once the wielder experiences a powerful emotion like love. In its base form, the Sharingan gives the user the ability to read their opponent's movements, and they can use it to trap people inside a genjutsu.
If the wielder experiences something traumatic, they can potentially awaken the Mangeyko Sharingan - which offers a variety of deadly abilities. Some can become intangible, and others can use Amaterasu to create inextinguishable black flames at the focal point of their vision. Some Mangekyo Sharingan users can also summon a Susanoo. This colossal samurai-like avatar is made of chakra, and a single strike from its weapon can destroy a small area.
6 The Ketsuryugan Can Turn Others Into Living Bombs
First Used in Naruto: Shippuden Episode 484, "The Exploding Human"
The Ketsuryugan is part of Naruto's official canon, and its power has been compared to the Sharingan, Bykugan, and Rinnegan. When the Ketsuryugan is active, the user's eyes glow red like blood. It gives the user the ability to manipulate any substance that has a high concentration of iron, including blood.
The user can cast a hypnosis-type genjutsu by touching someone or by making eye contact with them. If the Ketsuryugan user touches someone, they can inject them with poisonous chakra. This chakra will destabilize the target's body until it explodes. An experienced Ketsuryugan user can turn dozens of innocent people into living bombs.
5 Sage Transformation Turns The User Into A Powerful Monster
First Used in Naruto: Shippuden Episode 117, "Jugo of the Northern Hideout
Like other members of his clan, Jugo possesses a kekkei genkai that drastically alters his body and mind. It is called Sage Transformation, and it gives someone the innate ability to absorb natural energy. They can morph They limbs into weapons, and they can create special appendages that can consume other human beings.
If someone uses Sage Transformation to transform their entire body, they will gain a demon-like appearance. While in this form, the user's physical abilities are increased to near-superhuman levels. They can also use their flesh to create special weapons that fire blasts of energy. Unfortunately, a full Sage Transformation drives the user to madness, and they will attack anyone in their path.
4 Boil Release Can Melt Through Almost Anything
First Used in Naruto: Shippuden Episode 204, "Power of the Five Kage"
Boil Release is a nature transformation kekkei genkai that combines Fire and Water Release. There are officially two versions of Boil Release, and they are both dangerous. One version causes the user's chakra to heat up until their body produces steam. The wielder can then use this steam to melt anything around them.
The second version of Boil Release allows the user to produce a corrosive mist from their mouth. This mist can melt anything - including the armor of a Susanoo. The user is immune to the mist's effects, but they cannot use it effectively if there are allies around. If the PH level is not adjusted in time, the mist will kill indiscriminately.
3 Explosion Release Gives The User Explosive Chakra
First Used in Naruto: Shippuden Episode 3, "The Results of Training"
Explosion Release combines Fire and Lightning Release, and it causes the user's chakra to gain explosive properties. Deidara of the Akatsuki would mix this explosive chakra with clay to create powerful bombs. One of these bombs could destroy an entire village, and another explosive could vaporize a small region.
Some individuals could use a melee version of Explosion Release. In this version, the user focuses their explosive chakra into their fists. This means that the user can obliterate someone with a simple punch. This application is especially deadly if it is used by a taijutsu specialist.
2 Scorch Release Creates Deadly Heat Orbs
First Used in Naruto: Shippuden Episode 265, "An Old Nemesis Returns"
Scorch Release briefly appeared during the Fourth Great Ninja War, and Pakura showed just how deadly it is. It is a nature transformation kekkei genkai that gives the user the ability to create heat orbs that look like miniature suns. These orbs revolve around the user's body, but they can also be freely controlled.
If someone physically touches one of these orbs, all the moisture in their body will instantly evaporate. This will cause the person to die in a mummified state. A Scorch Release user can also incinerate everything in a small area by creating a single large orb.
1 The Rinnegan Has The Power To Do Almost Anything
First Used in Naruto: Shippuden Episode 135, "The Promise That Could Not Be Kept"
The Rinnegan is arguably the strongest ocular kekkei genkai in Naruto. In the right hands, it can be used to absorb any type of ninjutsu, and it can summon a variety of monstrous beasts. The Rinnegan can create advanced weapons like missiles, and it can kill people by extracting their souls.
The strongest aspect of the Rinngan is the Deva Path's ability to control gravitational forces. The Almighty Push technique can repel any attack, and with enough chakra, it can destroy a major city like the Hidden Leaf Village. The Deva Path can also pull meteors down from space, and the resulting impact can instantly kill thousands of ninja at once.
