"How about we make this more interesting?"
Shigaraki whistled a single time and the ground began the tremble. The heroes jumped away, knowing what was coming next. Out of the ground came Machia. He was transforming into battle mode and thus growing in a massive extend. He looked at his master.
"Go wild"
That was the sign for the giant villain. He smashed his arm on the ground where the heroes were standing, scattering them apart.
"Izuku! Kirishima! It is down to you two! Eraserhead and I will handle Gigantomachia!" Endeavor commanded while flying towards the giant villain.
Izuku and Kirishima hurried towards the supervillain, who was still just standing there. It looked like he was just having fun, playing with his toys like a child. Izuku knew the villain was holding back his full power, just to mess with them. It made Izuku hesitate. What if Shigaraki was just too strong? Izuku only has a small piece of his power, why was he thinking he could actually stop All For One? Izuku felt like he was sinking in to the ground. His body began to shake with the realization and he was trembling on his knees.
But then Izuku felt a hand on his shoulder. It pulled him out of his thoughts and upon looking at who it was, he could see the small smile of Kirishima. Kirishima didn't say anything, but his eyes told everything Izuku needed to know. They can do it. Together.
However. The villain didn't wait for the two heroes to attack. A massive shockwave blasted towards them. The shockwave pushed all debris what was swarming around away. The debris went flying in high speed away from Shigaraki. Izuku and Kirishima needed to be careful and focus to dodge all the debris. They jumped, dodged and ran over the flying things and made their way towards the villain.
Kirishima used smoke screen to blind the area. It was a chance to get some impact on Shigaraki while the villain couldn't see anything. Izuku used this opportunity and came in with an high-kick straight towards the head of Shigaraki. But his leg was met with the hand of Shigaraki before having an impact. Izuku had a confused expression on his face. How could Shigaraki have known? Shigaraki threw Izuku on the ground. "You know I have an infrared quirk" He laughed. Shigaraki then activated his hyperthropy. It made his arm bigger. Just like the quirk of Muscular. Izuku quickly focused on Musculars quirk and the muscles on his arm grew too. Izuku countered the punch with his muscle enhanced arm. Izuku then jumped from the ground up and used telekinesis to get himself a steel pipe. Once he got the steel pipe, he used his darkness to make it a deadly sword. Slices of darkness were flying towards the villain, who was simple using air cannon to counter the attack, making the slices of darkness fade and blowing Izuku away. Izuku didn't have any grip to resist the pressure of the air.
Kirishima was attacking too. He used One For All to enhance his punches while using hardening. When met with air cannon, Kirishima used his black whip to get a grip on something and with his tendrils he was still moving forwards towards the villain.
Shigaraki laughed maniacally once again. He then put his hand up once again. Both Izuku and Kirishima knew it was once again an air cannon.
"Let me show you what combining quirks can do" Shigaraki laughed. "This is air cannon and heavy payload"
He put his hands up and one of the biggest wind pressures ever started to come out of it. Both Izuku and Kirishima were flying away off it. There was no way to resist it.
"Let's add decay to it"
The air of the air cannon became dry, very dry. Everything it touched began to crack. The ground, debris, bodies of dead people and the two heroes. Izuku could feel the upper layer of his skin getting dry and slowly cracking open. It wasn't as fast as normal decaying would do, but still fast enough to be dead in less than a minute. He quickly used darkness to protect himself. However, Kirishima only had his hardening quirk. And it wasn't that good in protecting against the decay. Kirishima's skin cracked open more then it already had been in his ultra hardening mode. Slowly, blood was flowing out. Izuku could see the boy. He was in immense pain. He slowly got up, trying to be not getting blown away by the air cannon that was still a raging wave of air. Izuku slowly walked towards the other boy. But it wasn't manageable. He could feel his energy drain away by only trying to resist the air pressure. Eventually Izuku fell back on the ground. He couldn't do anything at this moment. He needed more energy. And then he saw something what could help with that.
The wind pressure stopped and Kirishima was sitting on his knees, screams of agony came out of his mouth while he was trying to do his best to resist it. Shigaraki floated in the air and landed in front of the kneeling boy.
"Time to take back what is mine" He grinned.
Shigaraki reached for Kirishima to take One For All. But he was stopped by tendrils of darkness who were pulling his arm away. Izuku stood there, using darkness on his right hand and his left hand on the ground. Izuku smiled while spikes came out of the ground, making Shigaraki jump away to not get pierced.
"This fight is with me. If you want One For All, you need to defeat me first" Izuku chuckled sinister.
"You stupid little rat! I should have killed your mother before you were born"
That comment only made Izuku more angry, more determined to win this fight. He was going to defeat his father with all what he got.
At UA, the villains were still coming. But now the police force had arrived to help the fight. And Nezu was informed the mobile headquarters of the army were on its way too. Nezu had seen his students grow in this short period of time. Because of their intense fight, most students actually had gotten a quirk boost. If the situation was different, Nezu would have had celebrated. But that wasn't an option now. They still needed to fight. To protect the people inside.
The other groups had managed to take down the other members League of Villains. They could see Endeavor and Eraserhead struggling to fight the gigantic monster of a villain. One by one, the groups joined in on the fight. The two pro heroes thanked them for their help and they all tried to come up with a plan, mid fighting. Eventually, they managed to do something. To make impact on Machia. Uraraka had managed to actually lift the villain up with her quirk, making him float. While floating, he couldn't do anything. Momo had made restrains and Endeavor and Bakugo had put the restrains on the villain. Sero used his tape to help with the capturing too. Mina used her acid to make the villain blind and odorless. Mirko had the last critical hit to knock the giant villain out. It was time he was getting a good, long sleep. After all the restraining was done, Shoto put him in a giant iceberg. They had found that that was the best option to keep him from waking up again. It was like a kind of cryofreeze or hypersleep.
White wings were coming out of his back, turning black when they were growing. Izuku put up both hands and the space around him was becoming full of light swords. They were covered with his darkness, but still shining in the air. The swords were about 1 meter long. Around Izuku were about 80 swords floating in the air, waiting to be fired towards the villain.
Izuku chuckled. It wasn't a cute chuckle. It actually was like he was a villain himself, ready to get a brutal murder on an innocent victim. He then fired all the swords that were floating around him at once. It was creating a light beam that was rushing towards Shigaraki. Shigaraki tried to counter it with air cannon, but failed. It made a look of horror coming up at his face. But All for One was fast. And in this body, he actually was flexible. He dodged a lot of the swords, but then one of the swords flew into his right shoulder, piercing it and making it bleed. Then another hit his leg, doing the same. But Shigaraki didn't go down. He just stood there. Shigaraki pulled the sword out of his knee. It twitched. But it slowly went back to normal. Shigaraki then pulled the other sword out of his shoulder. The wound where the sword was in, was healing too.
"Super regeneration. Always handy to have" He smirked.
"Is that all you can do? Or do you want to dance like a powerful person"
Shigaraki then attacked Izuku again, jumping up to him with a combination of his floating quirk and shockwave to boost him up. Izuku flew away to dodge the incoming man, meanwhile shooting balls of darkness. The two chased each other for a while.
The rest of the heroes and students looked at the space the fight was going on. You could see flashes of black and bright light and hear the sound of air. Yes you could hear the air. It was like a fighter jet was going through the sound barrier, only this was multiple times in a minute.
"We need to help them in any way"
"But what can we do? They are both a next level of powerful"
"You are right. But we have someone who can erase quirks by just looking at them"
They all looked at Aizawa, who just sighed as he knew what he was going to do.
"Sure. I will try to cancel the quirks of Shigaraki. But I can't blink. You need to prevent me from it. And if I do, make sure you are ready to jump in and protect me"
They all nodded at the agreement. They then went towards the battlefield, seeking a save place for Eraserhead to be when he was glaring at the villain.
Shigaraki was standing back on the ground, ready to use rivet stab on Izuku. With that, he would pierce trough the young boy and take his quirk in the meantime. He would leave Izuku to die here and now. Shigaraki focused on the quirk, but nothing came.
"Stupid Eraserhead" Shigaraki grunted. He tried using search to search for Eraserhead, but it didn't work either.
Izuku immediately knew what was going on. He actually had a chance now! He quickly formed his Angel swords once again and fired them at Shigaraki.
"NO IT IS NOT SUPPOSED TO GO THIS WAY! I AM SUPREME!" Shigaraki yelled angerly when the swords hit him.
But Izuku had made a mistake. Because of the light his quirk produces, Aizawa couldn't see the villain anymore.
Shigaraki grinned when he felt his super regeneration coming back to him, just like all the other quirks.
Izuku understood what he had done and flew as fast as he could towards the villain. He landed on the ground before Shigaraki. Who was despite having his quirks back, still lying on the ground. Izuku used overhaul to restrain Shigaraki. With telekinesis, Izuku pushed Shigaraki's head on the ground. He was bringing his hand towards the head of the villain.
"Now. I think you thought I didn't know. But I am not stupid. I am way smarter than you think. Yes, I am going to take your quirk. Make All For One complete once again. But this time, it is completely mine" Izuku said dead serious.
"You won't be able to do that. You don't have the willpower" All For One said back.
"You know I have"
Izuku had his hand on the head of the villain, closed his eyes and focused on locating the quirk All For One. But It wasn't the first quirk he found. He came across search and took it.
"Hard to find, boy? You will not get my power"
It brought Izuku out of focus. Izuku grunted and tried focusing again. Sadly for the greenette, grey slime formed around the villain.
"No. No. NO" Izuku shouted. He knew immediately what was happening. And when the slime was gone, Shigaraki was gone too.
The others came running towards Izuku. Uraraka put her arm around his shoulder. Izuku then lifted his head up. Tears rolling over his cheeks. But he was smiling. Smiling with a bright smile like he was victory. The other looked at him confused, but before someone could question it, Izuku stood up.
"I have his Search. I can see where he is. I can see the coward hiding with his old body. I'm ending this once and for all"
With that, Izuku flew away. Leaving everyone behind in confusion.