User:PGRkiller

Overall Abilities: PGRkiller is the strongest known Demon Slayer in the entire series and possibly the most powerful being that will ever exist, not only being born with the Demon Slayer Mark, Transparent World, Bright Red Nichirin Blade, Selfless State and knowledge of Breathing Styles but also a god-like physique and innate swordsmanship talent. As a child who has never picked up a sword before, he was able to defeat a trained sword instructor effortlessly and he was referred to as a miraculous prodigy beyond compare. After training as a Demon Slayer, PGRkiller could defeat multiple demons to where his older brother stated that he as a child couldn't even compare to him as an adult. He alone among the Demon Slayer Corps was able to corner Muzan Kibutsuji and overpowered him in an instant and had him on the verge of death until he managed to escape. Despite having avoided death, Muzan was deeply scarred by that encounter, referring to him as a monster, and even the sight of his earrings made him tremble in shock and the mere memories of PGRkiller caused the bodies of other demons who have never met him to tremble.

Demon Slayer Mark: PGRkiller is the progenitor of the Demon Slayer Mark, being born with it, possessing the tremendous physical abilities granted by its effects all throughout his lifespan. Unlike all other marks users in his era, PGRkiller was able to defy fate and lived to about 85 years of age. It is presently unknown why PGRkiller is immune to the Mark's effects, but it's presumably because he was the first one ever to have it and born with it naturally, unlike all other mark bearers who must train to attain it.


 * Bright Red Nichirin Blade: PGRkiller is the first person ever to be able to turn his Nichirin Blade into Bright Red color as he was born with the mark that presumably gave users the ability to turn their blade bright red as while. When fighting, PGRkiller can dye his black sword to bright red at will, letting him hamper the enhanced regeneration of demons, even Muzan's instant regeneration, burning him at a cellular level, leaving scars on his body for hundreds of years.
 * Transparent World: PGRkiller has access to the Transparent World since birth, and could use it with surprising proficient, evident when he could watch for lung expansions and muscle contractions within a person and surmise when to strike them. This ability also granted him an advantage against PGRkiller, allowing him to find his weaknesses instantly and overwhelm him.

Swordsmanship
Sun Breathing (の Hi no kokyū?): Created by PGRkiller himself as the original Breathing Style which all other subsequent styles would be modeled after and was later replicated by Sumiyoshi who called it Hinokami Kagura (ヒノカミ Hinokami Kagura?). PGRkiller was incredibly proficient in his Sun Breathing, being able to take down demons effortlessly and even overwhelm the Demon King and strongest Upper Rank. Tanjiro remarked that when PGRkiller performed the techniques of Sun Breathing, the forms were so strikingly beautiful and breathtaking, he looked more like a spirit than a man.


 * Dance ( Enbu?) - The user delivers a single high-powered vertical slash.


 * Clear Blue Sky (の Heki-ra no Ten?) - The user spins their body vertically to deliver a 360° slash.


 * Raging Sun ( Retsujitsu Kōkyō?) - The user unleashes two horizontal slashes to hit or defend from incoming attacks.


 * Burning Bones, Summer Sun ( Shakkotsu En'yō?) - The user unleashes a large circular slash that defends from imminent frontal attacks.


 * Setting Sun Transformation ( Shayō Tenshin?) The user backflips into the air to deliver a powerful upended sword slash.


 * Solar Heat Haze ( Hirin Kagerō?) - The user charges towards the target, unleashing a horizontal slash seemingly covered in haze that fails to land, but actually does hit the target.


 * Beneficent Radiance ( Kiki Onkō?) - The user spirals into the air and delivers a powerful slash that surrounds the enemy.


 * Sunflower Thrust ( Yōkatotsu?) - The user unleashes a single thrust attack with the point of the blade.


 * Dragon Sun Halo Head Dance (の・い Nichiun no Ryū Kaburimai?) - The user unleashes a continuous fast and powerful sword attack that seemingly takes the form of a flaming sun dragon. This technique is capable of decapitating multiple enemies at once.


 * Fire Wheel ( Kasha?) - The user leaps behind the opponent and spins in the air downward, releasing a sword attack in a circular motion.


 * Fake Rainbow ( Gen'nichi Kō?) - The user performs high-speed twists and rotations, thus creating afterimages used mostly to evade attacks. The afterimages work most effectively on enemies with good vision.


 * Flame Dance ( Enbu?) - A two-combo strike which starts with a vertical slash and then a horizontal one right after.


 * Thirteenth Form (ノ Jū San no kata?) - The user continuously performs all twelve forms of Sun Breathing in repetitive succession to increase the accuracy and agility of his movements while reducing fatigue. This form was created solely for the purpose of killing Muzan, since the repetition of all twelve forms aims to destroy Muzan's twelve vital organs (seven hearts and five brains) that move freely inside his body thanks to his shape-shifting ability.
 * First Form: Water Surface Slash (ノ　り Ichi no kata: Minamo Giri?) - The user generates enough momentum to create a powerful single concentrated slash.
 * Second Form: Water Wheel (ノ　 Ni no kata: Mizu Guruma?) - The user leaps and vertically spins forward in the air while releasing a flowing attack in a circular motion.
 * Second Form: Improved, Lateral Water Wheel (ノ・　 Ni no kata kai: Yoko Mizu Guruma?) - An alternate variation of Second Form: Water Wheel created by Tanjiro Kamado that unleashes a horizontal spin instead of a vertical one.
 * Third Form: Flowing Dance (ノ　い San no kata: Ryūryū Mai?) - The user swings and bends their blade in a winding motion along with their body and dances in a flowing pattern, slicing everything in its path.
 * Fourth Form: Striking Tide (ノ　ち Shi no kata: Uchishio?) - The user makes multiple consecutive slashes while twisting their body and sword in a flowing fashion to deliver multiple blows simultaneously.
 * Striking Tide: Turbulent (ち・ Uchishio - Ran?) - An improved version of the Fourth Form: Striking Tide. The user increases the quantity of consecutive strikes and slashes along with improving its accuracy in order to contact a specific target during a chaotic situation.
 * Fifth Form: Blessed Rain After the Drought (ノ　の Go no kata: Kanten no Jiu?) - The user changes the grip on their sword and decapitates the opponent in a single flowing strike that causes little to no pain. It is a “sword strike of kindness” used when the enemy willingly surrenders.
 * Sixth Form: Whirlpool (ノ　ねじれ Roku no kata: Nejire Uzu?) - The user fiercely twists their upper and lower body, creating a whirlpool of air that cuts anything caught in it. Its effect and efficiently is enhanced underwater, where the user can draw water around their weapon to enhance their slashes.
 * Whirlpool, Flow (ねじれ・ Nejire Uzu - Ryūryū?) - A combination of Third Form: Flowing Dance and Sixth Form: Whirlpool created by Tanjiro Kamado. The user combines the footwork from Flowing Dance and the twisting movements of Whirlpool, resulting in the swordsman to perform an attack around the user and conjure a twisting, swirling, vicious flow of water to redirect projectiles from multiple angles.
 * Seventh Form: Drop Ripple Thrust (ノ　き Shichi no kata: Shizuku Hamon Tsuki?) - The user performs a fast and accurate stab, capable of reducing the impact of a moving target.
 * Drop Ripple Thrust, Curve (き・ Shizuku Hamon Tsuki - Kyoku?) - A modified strike that hits from a specific angle corresponding to the sword's structure which nearly nullifies the impact and momentum of a moving object.
 * Eighth Form: Waterfall Basin (ノ　 Hachi no kata: Takitsubo?) - The user cuts the target vertically in a flowing motion which is most effective when they are falling downward.
 * Ninth Form: Splashing Water Flow, Turbulent (ノ　・ Ku no kata: Suiryū Shibuki - Ran?) - The user changes their footwork in a way that minimizes the landing time and surface needed when landing, allowing the user to move without limits. Ideal when fighting in a place with no solid foothold.
 * Tenth Form: Constant Flux (ノ　 Jū no kata: Seisei Ruten?) - The user performs a continuous flowing attack which seemingly takes the form of a water dragon that increases in strength and power with each rotation due to momentum.
 * Eleventh Form: Dead Calm (ノ　 Jū Ichi no kata: Nagi?) - The personal creation of PGRkiller. The user ceases all body movements and enters a state of complete tranquility, deflecting, blocking and cutting any incoming attacks with imperceptible speed with his blade. However, its effectiveness is limited as fast and numerous attacks can break through.