Another All For One User?! Nine Vs. Alyx Leonidus! (Movie Saga)

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After a rather long day, I noticed that the negative energy was much more prominent than before! I decided to head over there a figure out what was going on. I went outside and activated Mode Two, I jumped into the air and flew towards where everyone else was at. There was a separate, smaller island located next to Nabu. Why exactly were they there?

*THIRD PERSON*

Leonidus landed down next to where he felt Yaoyorozu's Heat Energy. Uraraka and Sero looked in his direction with wide smiles.

"A-Alyx!" Uraraka beamed.

Nine turned his head to look towards Alyx. He saw him standing still, looking down at the unconscious Aoyama and Momo. Leonidus' head slowly turned around, his eyes widened with rage, Nine raised his left eyebrow and widened his eyes. Steam rose off of Alyx, Kaminari saw the sight of something bad brewing, not for Leonidus. But for Nine.

"YOU FINNA DIE, BABY!" Kaminari shouted.

Leonidus' eyes filled with nothing but Overdrive as he appeared in front of Nine, his fist slamming into Nine's stomach, completely destroying the ground behind him! Nine went flying backwards, bouncing off the ground. Alyx darted forward with incredible speed, ramming his foot into Nine's stomach. He went flying into the air as sparks of Overdrive carried him upwards.

"I-Is he fighting seriously... At full power...?" Mineta wondered.

"If he is, this is the scariest thing I've ever seen." Sero replied.

Nine put up his Air Wall as Leonidus charged towards him, to Nine's surprise, Leonidus didn't let up one bit! He went head first into Nine's Air Wall, shattering it with ease! Alyx careened into Nine's face, causing Nine to recoil backwards. Nine rebounded with his Hydra Quirk, sending a blue-dragon attack right into Leonidus! The afterimage poofed out of thin air, Alyx had it foot reeled backwards and it slammed into the back of Nine's head, sending him crashing into the ground. Nine sent out another one of his Hydra Quirk at Leonidus, two rushed towards him instead of one. He took off towards Nine as the attack followed him, he landed on the ground as Nine's attack came close, it shattered the ground he stood on. Nine walked forward towards his Hydra.

"That all actually hurt. You are a threat, unlike those other heroes. You definitely interest me the most." Nine spoke up.

As the dust and smoke cleared, Nine stumbled upon Alyx's force shield, it held his attack without any trouble! Leonidus glared at Nine with a look of disgust and anger.

"You won't be leaving here alive, I can assure you that. People like you... Those that hurt the ones I love... They don't deserve to walk on the same dirt as me." Alyx retorted.

He burst his shield outward, sending a shockwave of electricity up Nine's attack, a near paralyzing assault of Overdrive made it's way to Nine's back. A green blur came flying in from the air towards Nine.

"ST. LOUIS SMASH!" Izuku yelled.

His foot rammed into the side of Nine's face, Nine went flying into a few trees before crashing into the ground, creating a sizable impact crater. Bakugo landed down next to him.

"Guys, we need to-" Alyx shouted.

Suddenly, a red wrap shot out around him and quickly pulled him into the dense forest. He slammed into a tree as the wrap quickly withdrew itself. Leonidus stood up and wiped the dirt off of his face, the surrounding trees shook as someone jumped through them. Alyx stood in the middle of the wooded area he was in as he waited for someone to come out.

"You were rather impressive against Nine, I've never seen anyone manhandle him like that before. I'm no fool, I know strength when I see it. I am Mummy, although, I doubt you'll be alive long enough to remember my name." He announced.

"Hmph... You can definitely try!" Leonidus laughed.

A bandage shot out from behind Leonidus, without even looking, he moved his head out of the way. It latched onto the tree in front of him then the tree began to move!

"Huh, interesting... That's new." Alyx muttered.

Suddenly, more red bandages shot out, giving life to the trees around him! Dozens of trees seemingly came to life due to Mummy's Quirk. Leonidus cracked his neck then beckoned them to come towards him. The trees all charged at him, commanded by Mummy, two of the trees slammed their hands down into the ground where Leonidus was. The smoke cleared and Leonidus had blocked their huge fists with one finger each! He grabbed one of their fists and threw it into the other one, Leonidus looked over towards the main source of the bandages and saw a huge army of trees in front of him.

He walked forward and took his gloves off as his Overdrive aura ignited around him. He darted straight ahead then tore through nearly a dozen of them, a tree from behind him launched a fist at him just to be met with a kick that completely shattered it's fist, causing it to explode into torn bandages. Leonidus stuck his arm out towards the rest of them and shot dozens of Stardust Shoot beams that pierced them. One last tree fell to the ground before Leonidus could reach it. The red bandage launched up and tried to grab Alyx's face but he dodged out of the way. Leonidus ducked and dodged as Mummy tried to use his bandage to grab him. The bandage quickly retracted deep into the forest.

"𝘛𝘩𝘢𝘵 𝘨𝘪𝘳𝘭... 𝘚𝘩𝘦 𝘮𝘶𝘴𝘵 𝘮𝘦𝘢𝘯 𝘴𝘰𝘮𝘦𝘵𝘩𝘪𝘯𝘨 𝘵𝘰 𝘩𝘪𝘮! 𝘏𝘦'𝘭𝘭 𝘴𝘶𝘣𝘮𝘪𝘵 𝘵𝘰 𝘮𝘦 𝘪𝘧 𝘐 𝘤𝘢𝘯 𝘨𝘦𝘵 𝘩𝘦𝘳..." Mummy thought.

He darted through the forest with Leonidus following after him. He stayed in place as Leonidus passed by him, thinking that he continued to go forward. Mummy made his way towards Yaoyorozu and Aoyama who were still exhausted from fighting Nine. Alyx looked over in the distance and saw Mummy dart towards a hill. He flew up after him and landed down several feet away from him. He had a bandage wrapped around Yaoyorozu's neck as he held a blade at his side.

"Ah, I'd stay back if I were you, child. Unless you're wanting her to die." Mummy told him.

"H-Hey! Put her down, now!" Alyx demanded.

Mummy tightened his bandage around Yaoyorozu, she let out a choked cry of pain, Alyx's fingers began to tremble with rage as his Overdrive aura disappeared. The grass on the ground began to blow outwards away from Leonidus as his breathing became shaky.

"Put... Her... Down..." Leonidus deadpanned.

"Or else what? You're at no-" Mummy smugly responded.

Suddenly, a red and black arm shot out towards Mummy, grabbing his mouth and causing him drop Momo. She looked up to notice that Leonidus had changed completely! Six additional arms had burst out of his back, finally revealing his second Quirk, Rage!

"You... Are fucking... Dead." Leonidus grinned.

A red and black smoke-like aura billowed out around Alyx as an unbelievable amount of pressure resonated from him. He slammed Mummy into the mountain side and right through into a cave where Mina and Tokoyami were facing off against Slice. Mummy got back up only to have his leg grabbed by another one of Leonidus' Rage arms. He slammed Mummy back and forth between the cave walls before grabbing Mummy's face and bringing him closer to him.

"You're absolutely pathetic... I'd love to tear your limbs off and watch you squirm, but that'd be too much fun for me to have right now." Leonidus monotoned.

Leonidus then absorbed all of Mummy's present anger, "W-What... Are... You doing?!"

"Taking your anger, now, shut the fuck up and go to sleep." He responded.

Leonidus slammed Mummy's head into the ground, rendering him unconscious, he let go of him then used his Rage arms to climb out of the newly made hole in the side of the mountain. He made his way back to Momo who was holding her throat and coughing. Alyx down next to her and hugged her, she looked at his back and noticed that the Rage arms caused his back to bleed. They disappeared as Leonidus began to calm down.

"W-Was... That...?" Momo questioned.

"Yeah, it was, if I stayed in that state for any longer I would've lost control of myself." Alyx confirmed.

He looked over and Izuku and Katsuki going against Nine in the distance, he looked down at Momo and nodded at her.

"Please, be careful, okay?" She asked.

"Yep! I'll try!" Leonidus smiled.

He activated his Overdrive and took off towards Nine. Katsuki and Izuku were both blasted backwards by Nine, Leonidus caught the two of them before landing back down on the ground.

"I need you two to distract him, I have something in mind that should take his ass out." Alyx told them.

"Amnesia, I'm not gonna fuckin' be order-" Bakugo argued.

"Katsuki, shut the fuck up for once in your goddamn life and listen to me, alright?!" Leonidus roared.

Izuku and Katsuki looked stunned, the expression of anger was on their friend's face, something they've never really seen before. Bakugo scowled and looked forward, he nodded along with Midoriya, the two charged off towards Nine without hesitation. Leonidus held his hands out to the side, large amounts of Overdrive began to emanate from his palms. The ground around him began to slightly shake as he gathered up more and more of his Quirk's energy. Katsuki looked behind him as Alyx held out his hands in front of him. He quickly grabbed Izuku after leaving a smoke screen in front of Nine. Nine dispersed the smoke screen but was met by a fearsome looking Alyx Leonidus!

"FINAL FLAAAAAAASSHH!!!" Leonidus thundered.

A gigantic array of blue light shot out from Alyx's hands. Nine quickly created an Air Wall that clashed against Leonidus' attack. The Air Wall began to crack but did not falter as Nine focused on it completely this time. Nine made eye contact with Leonidus, his eyes turning yellow as he used his Scanning Quirk, Nine observed Leonidus' Quirk and gauged his power.

"This... Is your limit." Nine remarked.

Alyx put more pressure onto his Final Flash move, Nine stood there, carefully watching and waiting for the right moment to strike.

"H-Holy shit, man! This is nuts!" Kirishima grinned.

"If he doesn't amp up his power now, we might be done for, maybe..." Shoto added.

Momo's eyes opened to see the display of Alyx's power, in that brief moment of consciousness, she smiled at him.

"Y-You've... G-Got... This... Darling..." She wearily mumbled.

Yaoyorozu fell unconscious once more, a smile still lingering on her face. Nine slightly jolted his fingers as he found his opening, sending the Final Flash move right into Leonidus! Alyx's eyes widened as he witnessed his own attack ram right into him, burrowing him into the ground, creating a blue explosion!

"A-ALYX!" Izuku shouted.

Nine put his hand down and brushed himself off, "Huh... How peculiar that one was. I do have to admit, I wish I didn't have to kill him, something about him was different. Now, back to my goal."

The fight continued on, with Leonidus seemingly out of the picture, was all hope lost? As Nine began to decimate the rest of Class 1-A, it came down to Izuku Midoriya and Katsuki Bakugo, both who were already exhausted as it was. The two decided to join forces, Izuku granting Bakugo the power of One For All! This sight frustrated Nine and a hellish firestorm began to brew. But suddenly, Nine's firestorm settled, which caused Izuku and Katsuki to look confused. The land began to rumble as the clouds swirled around in the sky. The waves crashed against the island, Nine looked around to see what was going on, Bakugo couldn't help but smile.

"You were right, Nine, something IS different about him!" Bakugo smirked.

A huge beam of Overdrive shot up from the crater where Leonidus had been defeated. His body rose up into the air, his fists clenched as he slowly started to move his head up. His eyes shined a dark blue through the pillar of Overdrive that carried him upwards. It shrunk into Leonidus, dispersing into a violet-blue, sparkly light. His hair was glowing dark blue on the ends, a "V" like symbol on his forehead, and steam rose intensely off his body. Nine tried to use his Scanning Quirk but he shot backwards in pain, grabbing his head.

"I... I can't gauge his power... How... How is he alive?!" Nine wondered.

Alyx's aura exploded outwards, his fists trembled, anger boiled up inside of him. His eyes shot open which froze Nine in place.

"RRRRAAAAHHHH!!!" Leonidus screamed.

His yell sounded like that of a demon! He charged towards Nine, wielding the full power of Infinite Mode! Izuku and Katsuki darted towards Nine as well, reeling back their fists, preparing for a unified strike! All three students made their way towards Nine using the maximum amount of their Quirk's respective powers. Alyx, Izuku, and Bakugo reeled their fists back, supercharging them with their Quirks!

"PLUUUUSSS ULTRAAAA!!" They shouted.

Their fists connected against Nine, creating a blinding light as they impacted against him. The trio of heroes slowly fell to the ground, exhausted, but alive. Blood ran from Leonidus' eyes, the attack had not only damaged Nine, but his Infinite Mode at full power did damage to Alyx as well!

[Some Time Later...]

Pro Heroes arrived on the scene, after having a talk with Izuku, All Might made his way over to Alyx. The "V" symbol still lingered on Leonidus' forehead, All Might knelt down to study it before it faded away.

"Wait... Is that...?" He muttered.

All Might took a cloth and wrapped it around Leonidus' eyes, "Young Leonidus, that Quirk of yours... It truly is a blessing. If you weren't here, I'm sure Young Midoriya and Young Bakugo wouldn't have had an easy time with this guy, thank you. You have no idea what you mean to all of us."

The military arrived, helping assist the U.A. students that were injured. Those that had sustained major injuries were transported to a hospital on Nabu Island. Later that night, an unexpected visitor came to see Leonidus. He sat down on the chair next to him.

"I'm glad you're okay, Alyx." Kariya muttered.

He slightly ruffled Alyx's hair, although Leonidus was still unconscious, Kariya could feel that he'd be happy with his presence.

"Bad guy turned good guy, huh?" Aizawa announced.

Kariya looked behind him, "Oh, Eraser Head, a pleasure to see you. What are you doing here?"

"I'd like to ask you the same thing, Kariya." He replied.

"Just coming to see my younger sibling, is there something wrong with that, Aizawa?" Kariya smirked.

"As long as you don't do anything to hurt him, then we'll be fine, got it? I won't hesitate to put you in his place if you do." Aizawa warned.

Kariya threw his hands up, "You've got my shaking in my boots, Eraser Head. I'm totally terrified!"

Shota crossed his arms and walked out of the room. Kariya stood up to leave the room as well, he gave one last look at his brother.

"Get better for me, alright? I'll kick your ass if you don't." Kariya smiled.