Kakuzu's Abilities and Jutsu

He had extremely high taijutsu prowess (due to his raw power and swiftness), a vast array of ninjutsu techniques consisting of multiple elements (due to his unique technique Earth Grudge Fear and near a century worth of experience) and a highly analytical mind. Those traits allowed him to fight several opponents while generally controlling the pace of the fight.

Intelligence

Kakuzu was shown to be a keen analyst, which was somewhat attributable to his age.

Taijutsu

Kakuzu has demonstrated great raw speed, able to cross great distances in the blink of an eye and disappear from unfocused eyes.

Body Structure

All of Kakuzu's abilities revolved around his unique body structure, which was composed of hundreds of thick, dark grey threads woven throughout his flesh called Earth Grudge Fear, holding his body together like the stitches of a rag-doll. This allowed him to separate his body parts at will, to perform long-range physical attacks and sew up almost any injury he suffered. All these abilities made him very difficult to defeat. The threads could also be used to repair the bodies of others.

His threads could even compact together to form a giant octopus-like form around his body, used for long range battle.

Kakuzu's threads granted him a degree of immortality (though he declined to think of it that way). The threads could pierce the flesh and bodies of others, allowing him to remove their organs and integrate them into his own body, thereby extending his life. He commonly removed hearts in this fashion, keeping a total of five at any time, and requiring that he be killed at least five times in a battle before he truly died. If Kakuzu was killed somehow, then one of his extra hearts could then re-enter his body and bring him back to life at the cost of the heart

Ninjutsu

The hearts captured from other ninja granted Kakuzu numerous elemental affinities, along with a vast supply of chakra. By collecting these hearts Kakuzu's own affinity is reinforced and his skill in other elements is increased to the point that he was able to use various different elemental attacks that were noted to be impossible, without having an affinity to that particular element. This is done by connecting his chakra circulatory system to his four extra hearts, granting him the ability to change his chakra nature and affinity to that of the previous owner. The individual hearts could be released from his body and wrapped in a vast blanket of threads, forcing a heart into a limb before being detached or forming a monstrous body with a mask as its face. These masks could move and attack independently, unleashing powerful blasts of elemental chakra from their mouths.

Earth mask: This heart had an earth-affinity, and took on the shape of a demonic, beaked biped. It allowed Kakuzu to use Earth Release: Earth Spear. In the anime, even though this mask was destroyed, Kakuzu was still able to use the Earth Spear technique, though it only hardened his arm.

Fire mask: This heart had a fire-affinity, and took on the shape of a demonic tiger. It could use Fire Release: Intelligent Hard Work. This mask could also unite with the Wind mask to launch a fire-wind dual strike that was near unstoppable.

Wind mask: This heart had a wind-affinity, and took on a strange four-legged body with thin wings. It could use Wind Release: Pressure Damage. It could unite with the Fire mask to launch a fire-wind dual strike that was near unstoppable.


Kakuzu with his masks on his back only has 3 Fire wind and earth.

Name: Body Replacement Technique
Rank: E
Type: Ninjutsu
Range: Short range
Element: N/A
Description: With this technique, one replaces their own body with a block of wood or some other object, the moment an attack lands. This creates an optical illusion, making the enemy think the attack was successful. From this, the user can use the lapse in the enemy's attention to attack or flee from the battlefield. Exploding tags can be attached to the replacement for an added surprise. It's a basic ninjutsu even taught at the Academy, but it's a useful art that can be applied in variety of situations.

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Name of Jutsu: Bikou Ninjutsu - Shadowing Stealth Technique
Rank: Unknown (Probable E or D)
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: General Skill Level
Element Affinity: -
Description:
Bikou Ninjutsu is the technique ninjas use to follow their targets covertly. The manner in which the ninja shadows their target can differ, from the basic hiding under a nearby object, to using a jutsu to turn oneself invisible.
Weakness:

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Name of Jutsu: Bunshin no Jutsu - Clone Technique
Rank: E
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: General Skill Level
Element Affinity: -
Description:
Bunshin no Jutsu is a Ninjutsu technique which every ninja learns at the Ninja Academy. The Bunshin technique creates a copy of the ninja without substance. The copy resembles the ninja in every way. This clone can function as a distraction or as means to confuse one's opponent.
Weakness:
As soon the Bunshin gets attacked or comes into contact with an opponent, it will disperse.

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Name of Jutsu: Henge no Jutsu - Transformation Technique
Rank: E
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: General Skill Level
Element Affinity: -
Description:
Henge no Jutsu is a ninjutsu technique which every ninja learns at the Ninja Academy. Henge allows the ninja to transform themselves into any person or object. This allows the ninja to move with stealth or to trick their opponents.
Weakness:

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Name of Jutsu: Kakuremino no Jutsu - Magic Cloak of Invisibility Technique
Rank: E
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: General Skill Level
Element Affinity: -
Description:
Kakuremino no Jutsu is a very basic Ninjutsu technique. The ninja uses a camouflage cloth to cloak themselves in the background.
Weakness:

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Name of Jutsu: Kawarimi no Jutsu - Change of Body Stance Technique
Rank: E
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: General Skill Level
Element Affinity: -
Description:
Kawarimi no Jutsu is a basic Ninjutsu technique. When in danger the ninja will quickly substitute themself with another nearby object. This can be a block of wood or even another person. This allows the ninja to quickly flee and hide while the original object takes the brunt of their opponents attack.
Weakness:
Note that this can only be used once per battle.

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Name of Jutsu: Nawanuke no Jutsu - Escaping Skill
Rank: E
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: General Skill Level
Element Affinity: -
Description:
Nawanuke no Jutsu is a very basic Ninjutsu technique that allows a ninja to escape from rope binds.
Weakness:

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Name of Jutsu: Kinobori no Waza - Act of Tree Climbing
Rank: Unknown (Probable E or D)
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: Higher General Skill Level
Element Affinity: -
Description:
Kinobori no Waza, the art of tree climbing serves a dual purpose. Taking part in Kinobori Shugyou (Tree Climbing Training) helps a ninja learn how to focus their chakra. It also teaches the ninja how to run up trees and walk on vertical walls. The training helps the ninja learn how to focus just the right amount of chakra to a particular part of their body. The amount needed to climb is small but it must be precise. The feet are regarded as the hardest location to master chakra focusing. So by gaining the art of this skill, the ninja will have any jutsu available (theoretically) because they will be able to focus their chakra as needed.
Weakness:

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Name of Jutsu: Suimen Hokou no Waza - Act of Water Surface Walking
Rank: Unknwon (Probable E or D)
Range: -
Type of Jutsu: Ninjutsu, Supplementary
Users: Higher General Skill Level
Element Affinity: -
Description:
A variation on the Kinobori no Waza (Act of Tree Climbing), the art of water surface walking allows a ninja to walk on water as if it was a solid surface. Focusing an even amount of chakra out of the soles of their feet, they can balance themselves on the very surface of the water.
Weakness:

Name: Earth Grudge Fear Clone
Rank: B
Type: Ninjutsu (EGF only)
Element: N/A
Range: short to be used on a body
Description: The user will take a body recently deceased and place some of the EGF strings in the body. This body can effectively use EGF jutsu as well as be used as a decoy or another body if the original is fully killed.

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Name: Body Flicker Technique
Rank: D
Type: Ninjutsu
Range:
Element: N/A
Description: This technique is a high-speed movement technique, allowing a ninja to move short to long distances at an almost untraceable speed. To an observer, it appears as if the user has teleported. A puff of smoke is occasionally used to disguise the user's movements. It is accomplished by using chakra to temporarily vitalise the body and move at extreme speeds. The amount of chakra required depends on the overall distance and elevation between the user and the intended destination.

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Name: Jiongu:Earth Grudge Fear
Rank: S
Range: Supplementary
Type: Hiden, Ninjutsu, Kinjutsu
Elemental affinity: None
Description: This technique is a secret kinjutsu of Takigakure. It transforms the user's body into something similar to that of a rag-doll's, which is held together by hundreds of thick black threads. Kakuzu was able to manipulate these threads for many purposes. He was capable of sewing up any injuries that he or others might suffer, most commonly by reattaching body parts. However, it appeared that this ability was somewhat limited, as he warned Hidan not to move his head too much after he had sewed it back on, saying that it might fall off again. He could detach parts of his limbs and then manipulate them, to the point that he could even send them underground and then reattach them when he was done with them.

The most significant aspect of these threads were that they granted Kakuzu a form of immortality, although he declined to think of it that way. In addition to sewing up his injuries, he could use the threads to tear into a victim's body, steal their still functioning organs, and integrate them into his own body, thus extending his life. Kakuzu usually used this method to steal hearts from powerful shinobi, and was able to store up to four spare hearts in his body at any given time, meaning that all hearts must stop functioning in order for Kakuzu to die. He can also put one of those hearts into his limbs and have them move individually, as seen when he used his hand to remove a shadow-enhanced trench knife that prevented the rest of his body from moving.

These hearts Kakuzu had taken from others were stored in various animal masks that were sewn onto his back, granting him vast amounts of chakra and numerous elemental affinities. He could detach these masks and have them take on a body of their own, composed entirely of threads. These masks were capable of attacking separately, unleashing devastating blasts of elemental chakra.

These threads could also compact together to form a spider-like body around Kakuzu, allowing him to fuse the attacks of his masks together in order to increase his attacking power.

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Name: Kage Bunshin no Jutsu - Shadow Clone Technique
Rank: B
Type: Supplementary
Element: N/A
Description: Kage Bunshin is a Jounin level Ninjutsu technique. When Naruto stole the scroll of seals, he learned this technique as well. The normal Bunshin technique creates a copy of the ninja that lacks any substance. The Kage Bunshin distributes the ninja's chakra evenly among the clones and creates a real copy with form and substance. The clone itself can also utilize any jutsu the original ninja knows. When the clone finally disperses, any new knowledge it has gained is passed back to the original ninja and any additional clones. This makes Kage Bunshin an excellent training method if the ninja has the chakra capacity and stamina to maintain the Kage Bunshins for an extended period of time. This allows the ninja to essentially reduce the time it takes to train and learn with each clone added. This is especially true when used with Tajuu Kage Bunshin.

Name: Earth Release: Rock Pillar Prison Technique
Rank: B
Type: Ninjutsu
Element: Earth
Range: short - mid
Description: This jutsu creates a large amount of rock pillars from under ground. They can then be controlled to surround their opponent and create a bamboo-like thicket of rock

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Name: Earth Release: Earth Spear
Rank: B
Type: Ninjutsu
Range: Self
Element: Earth
Description: The user flows chakra through all parts of their body causing it to become noticeably darker, which increases their defensive power to its utmost limits by making the skin as hard as diamond. Furthermore, the destructive power of physical attacks is increased, making this a great all-purpose technique. The amount of techniques that can break through the areas hardened by the Earth Spear are close to zero, excluding its undeniable weak point: Lightning Release ninjutsu.

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Name: Earth Release Shadow Clone
Rank: A
Type: Ninjutsu
Range:
Element: Earth
Description: This technique creates a shadow clone made of mud of the user. Since its made of mud, it can continue to reform and mould itself back to its original shape. After reverting to mud, it can hold the opponent in place.

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Name: Earth Release: Tearing Earth Turning Palm
Rank: C
Type: Ninjutsu
Range:
Element: Earth
Description: This technique causes the ground surrounding the enemy to spiral inwards on itself, burying them alive or crushing them. This technique is capable of causing quite a bit of damage to the area. This technique is much more damaging if used in rocky mountainous areas, or inside a cave.

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(Doton: Moguragakure no Jutsu) – Earth Release: Hiding like a mole technique
Rank: C
Type: Supplementary
Range: Long
Description: The user changes earth into fine sand by channeling chakra into it, allowing the user to dig through it like a mole. While underground one can sense what is happening on the surface and use the information to launch a surprise attack on the enemy. Once can also hide deep in the ground, escaping to a depth where the enemy cant reach.

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(Doton: Doryuso) - Earth Style: Rising Stone Spears
Rank: B
Type: Offense
Range: Short/Mid
Element: Earth
Description: This technique lets the user condense mud or stone from the ground and shape them into spikes that will protrude from the ground to skew the target. The spikes cannot penetrate targets of greater density.

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(Doton: Yomi Numa) - Earth Style: Swamp of the Underworld
Rank: A
Type: Supplementary
Range: Short/Long
Element: Earth
Description: This technique creates a swamp beneath the target (relative to them) that immobilizes them. If the swamp is made deep enough it will kill the target. The size of the swamp is proportioned to the amount of chakra of the user.

Name of Jutsu: Dai Kamaitachi - Great Cutting Whirlwind
Rank: B
Type of Jutsu: Ninjutsu
Element: Fuuton(Wind)
Description: Named after a mythical creature, the user uses her/his fan to blow a concussive wind that is imbued with her/his chakra. This technique is a bigger version of the normal Kamaitachi no Jutsu, having the ability to cause a great amount of cutting damage to the nearby area.

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Name: Wind Release Stream
Rank: C
Type: Ninjutsu
Element: Wind
Description: By blowing air from their mouth, the user is able to change direction while in mid-air at high speeds. In the anime, it was shown it can also be used to blow up a dust cloud, concealing one's location and movements.

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Daitoppa - Great Breakthrough
Rank: C
Range: Close (0m ~ 5m), Mid (5m ~ 10m)
Type: Attack
Fuuton • Daitoppa is a Ninjutsu technique which utilizes the Wind Element. After bringing his hand to his mouth, Dante will blow a large blast of wind capable of leveling almost anything in its way. A variation of the technique involves a smaller blast of wind which gets ignited with flame.

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Name: Kazekiri - Wind Cutter
Rank: B
Type: Ninjutsu
Element: Fuuton
Description: Fuuton • Kazekiri no Jutsu is a Ninjutsu technique utilizing the Wind Element. To utilize this technique, the user will form the needed hand seal. A large slicing wind will then be created which can cut through his opponent. This can be used to immobilize large summons.

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Wind Release: Pressure Damage
Rank: B
Type: Ninjutsu
Element: Wind
Description: . A tornado-like mass is compressed until it has a very high density and is then released. The wind pressure is raised to its highest limit, and once the technique hits the target, the resulting blast sweeps everyone off their feet.

If the technique is used by someone who has mastered wind nature transformation, the blast can hit a vast range, inflicting massive damage on both the target and their surroundings.

Name: Phoenix Sage Fire Technique
Rank: C
Type: Offensive
Element: Fire
Range: Short-range
Description: This technique creates a volley of small fireballs, which are sent flying in an unpredictable manner assaulting the enemy. In addition, the flames are controlled one by one with chakra, so avoiding them all is extremely difficult. Shuriken can also be concealed within the flames, creating an unexpected secondary surprise attack.

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Name: Ash Pile Burning
Rank: B
Type: Offensive
Range: Mid-range
Element: Fire
Description: The user spews a stream of chakra infused gun-powder from their mouth, which surrounds the region. As the gunpowder is composed entirely of ash, it stays in the air around the victim like a cloud, which can be used like a smokescreen. After surrounding the enemy with the ash, the user can ignite it with a flint placed on their teeth beforehand to create a spark, resulting in a violent explosion, burning the enemy. However, this technique requires keen senses to read the air currents, the insight to read the movements of the enemy, the tactical experience to not also enfold one's allies in the flames, and careful attention for the timing of the ignition

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Name: Great Dragon Fire Technique
Rank: B
Type: Offensive
Range: All ranges
Element: Fire
Description: The user compresses a large amount of chakra built up inside their body and changes it into a dragon-shaped fireball. The user then skillfully manipulates that great fire, and attacks their opponent.

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Name: Great Fireball Technique
Rank: C
Type: Offensive
Range: Short-range
Element: Fire
Description: A technique where chakra kneaded inside the body is converted into fire, and expelled from the mouth in a massive orb of roaring flame or as a continuous flamethrower. The scope of the attack is altered by controlling the volume of chakra that is mustered. The released flames will engulf their target, and leave a crater on the ground's surface.

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Name: Fire Release: Spiralling Sun Blast
Type: Ninjutsu
Rank: A
Element: Fire
Description: It's shape while in it's initial form in the users hand is that of a small hand sized bright yellow orb surrounded by three swirling flame rings. When the orb makes contact, it sends the the enemy flying leaving behind a cylindrical stream along the way. At the end it explodes, looking like a miniture sun with the enemy in the middle. The flames will give the enemy 4th degree burns and will leave scaring on the skin. Due to the intence heat there nerves are also scorched and is only repairable by several treatments from medical nins.

Name: Chakra Teyaiba [Chakra Hand Blades]
Type: Ninjutsu / Taijutsu
Rank: A
Range: Close
Description: The user gathers chakra into the shape of blades on the back of their hands and fingers, about a milimeter thick at the base and tapering to a razor an inch from the base. They extend an inch past the tips of the fingers and all the way along the hand bones to the wrist, tapering off at each end, the bases receding into the skin and the tips coming to points. The blades work for both offense and defense, being strong enough to deflect physical attacks and to cut through metal if enough force is applied. They will start to lightly chafe the skin if maintained for more than 5 posts at a time, and will start to leave minor burns at 10 posts.

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Name: Izuna Drop
Type: Taijutsu
Rank: B
Range: Close
Description: This is the gateless variation of the Lotus technique. After launching an opponent into the air, or snagging them while in midair, you grab them from behind. Using a special boosting techinque you bring them higher into the air while flipping them upside down. You then use your momentum to spin them into the ground. If you are an A ranked or higher shinobi, a 5 foot shockwave spreads from the impact that can possibly hit people at or near the impact point. Afterwards you flip gracefully and land up to 8 Â feet away. This spin is slower than the actual Lotus since you are using momentum and no chakra until impact. While this does no damage to you from the impact, the manuevering it requires strains your muscles. As a result you should wait about 3 posts between uses, or hurt yourself.

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Name: Hadou Ken [Surging Fist]
Type: TaiJutsu
Rank: B
Description: The Art of Hadou is being able to tap into one's Spirit and use it as an energy-based attack. Focusing this energy, it can be formed into a ball of energy. This "energy" is blue ball of light, Much similar to Chakra, or perhaps Pure Chakra itself. With this, they will then thrust this ball into another person's abdomen. This attack has a small electric surge.

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Name: Chakra burst movement
Type: Ninjutsu
Rank: B
Range: 30 Feet
Description: This jutsu utilizes chakra in a different way then most jutsu. The user will gather chakra in their body and then release it in a large blast, sending their body moving in the opposite direction. This technique moves the target almost instantly having anyone see the user as a blast of light then simply gone. This technique can only allow the User to travel a distance of up to thirty feet. This jutsu is unlike Shunshin in the way it is performed. the chakra release pushes the user into their destination using the chakra as a thruster while the user focuses it to move where they want, making this usable while even in mid air or in water. This Jutsu requires well amount of chakra control to use, though strangely the chakra cost is not much higher then a shunshin. Though it cannot be used more than once in a post.

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Name: Phoenix Style: Flaming Blast
Type: Taijutsu
Rank: C
Description: This taijutsu style is one that symbolizes the might of the mighty phoenix. This style was developed by a Missing-Nin that specialized in the use of katon jutsus. The shinobi focuses chakra into their fist and feet to cover those parts in fire. This allows them to burn their opponent and is as harmful as sticking your hand in a fire.

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Name: Rising mud uppercut
Type: Tai/Nin
Rank: C
Description: The user after having mud around the enemy digs underground. The user reappears under their opponent slamming a uppercut into the opponent's face. The punch is covered in mud Slightly increasing the damage.