My Hero Academia: Killer Quirk!!

"Will this be your last swing All Might?" All For One chuckled and started floating into the air. "Doesn't even look like you have 2 or 3 swings left in you."

"SHUT UP!!" Endeavor yelled and sent a torrent of flames at the air borne All For One.

---

Gritting his teeth, Bakugo watched the battle without so much as blinking. Aiden eyes on the other hand laid solely on the once masked villain.

'So this is the power needed to be the strongest...'

Looking down at his hand, he turned back to stare at All For One with a sharp glow in his eyes.

---

"Enough with the sentimental words. Lets talk reality." After hearing the inspiring words from the flame hero Endeavor, All For One blew away the surrounding heroes until it was just him and All might left.

"Up until this point, the shock waves I've used against you were just there to wear down your strength." While saying this, his right arm started to squirm and transform. "But to ensure that I kill you, I have combined the most suitable quirks needed to strike you down." By the end of his speech, All For One's right arm had transformed into a grotesque looking amalgamation of strength enhancing quirks.

---

"Still think All Might's gonna win?"

Bakugo grit his teeth and refused to answer the question and kept his eyes focused on the fight ahead.

Looking at the floating All For One, Aiden couldn't help but revere the man's abilities. Despite the fact that this man had obviously killed a sickening amount of people, he had to respect the power capable of contending with All Might in a one on one brawl. In fact, the sight in front of him and his earlier confrontation with All For One showed him just how much further he had to improve if he wished to become a symbol capable of rivaling the symbol of peace.

---

"Izuku Midoriya." All For One suddenly spoke a name that threw All Might off.

"He's the one you transferred One for all to right? A boy without the minimal needed qualifications... You transferred a quirk that I personally bestowed upon my brother to such trash... You really disappoint me All Might."

*Clench!!*

"Oh? Did I hit a nerve?"

"Shut your mouth." All Might whispered.

"To think you'd pass on your master's legacy to such pathetic child."

"Shut up."

"If she saw you now, I wonder how disappointed Ms. Shimura would be?"

"SHUT UP!!"

*BOOM!!*

The clash between the two created a large shock wave that destroyed the surrounding area and shook the nearby buildings.

"IMPACT REVERSAL!" All For One yelled and sent the kinetic energy from the clash back into All Might's arm.

*Spurt!* Coughing up a mouthful of blood, All Might felt himself being pushed back as the blood vessels in his arms burst from the recoil of All For One's impact reversal.

---

'Looks like All Might's gonna lose...'

*Sigh*

Getting up from the roof, Aiden light stepped away and left Bakugo by himself to watch the fight.

'This should be high enough.'

Standing on a taller building, Aiden had a good view of the two titans going at it.

'You owe me one All Might.'

Pointing his right arm out in front of him, he gathered all of his astral energy into a single point on his finger.

"Pierce."

[A/n: For some reason I pictured Aiden doing it like Frieza's death beam.]

---

Feeling the final embers of One For All slowly extinguishing, All Might felt a sense of despair take hold of him as he realized that he wouldn't be able to stop One For All's onslaught. Closing his eyes he prayed for the strength no! He prayed for a chance! A single chance to stop his fated enemy once and for all.

And as if hearing his prayer, that chance came in the form of a purple light descending from the distance. With all his attention focused on killing All Might, One For All didn't realize the oncoming danger until it was to late.

"Grrr!" He grunted after feeling a sharp pain erupting from his back.

Using this opportunity while he was distracted, All Might drove One for all into his other arm and upper cut All For One before returning the power back into his right arm and yelling-

"UNITED STATES OF-"

Before All Might's fist landed on his face, All For One subconsciously activated the quirk he stole from Ragdoll and turned his head to the side as if he was looking at something.

"Aiden..." He whispered.

"SMASHHH!!"

*BOOM!!!*

---

"Whew." Dropping down onto his ȧss, Aiden took in a mouth of cold air as he executed a breathing technique to calm his body down.

'Fuck! That last strike used up all my astral energy!'

Cursing at All Might's uselessness, Aiden couldn't help but smile when he heard the crowd cheering in the distance.

"I want a pizza."

---

"Where am I?" All For One asked after finding himself bound by a straight jacket and wheelchair.

"SHUT UP!!" The guard pushing the wheelchair yelled.

"Can't you see where we are! This is a place where scum like you who are to good for the death penalty end up!"

"Ahh, so its a prison..." All For One smiled. "There's to many sensors here."

"What?" The security guard said confused. "Are- Are you telling me that you can't see?!"

"...Besides the rustling of clothes and the tiny vibrations in the air, I've spent the last 6 years using an infrared ray quirk to faintly make sense of my surroundings."

While wheeling him towards his cell, only one thought went through the guards head.

'He fought All Might in that condition.'