Icyhot put up a wall, blocking the blade swung by Stain from hitting him.
Katsuki saw the sword in the air, and realized what was happening, letting out a growl of annoyance as he lunged forward. When Icyhot looked up at the sword, the Hero Killer pulled another dagger from it's metal holster, rushing towards him.
Katsuki let off an explosion and shot forward, bringing his foot to the villain's face. His foot barely connected, allowing the villain an opening to bring up a knife to Katsuki's side. Flames reflected in the villain's red irises, causing him to leap back to avoid being burned.
"I had that handled!" Katsuki barked, landing on his feet next to the lit up Icyhot.
"So did I." The bastard deadpanned, referring to the sword.
"Tch."
Icyhot let out a huge wall of ice, and Katsuki shot into the air, jumping off of the peaks as they grew in size. The Hero Killer was concentrating on doing the same, and Katsuki let off another blast from his gauntlet towards the villain as the ice rose beneath him. Icy hot caught on fast, lowering the peak Katsuki was standing on after the blast went off, until he was back on the ground next to him.
Suddenly, the ice in front of them shattered. A blade shot out and Katsuki dodged it. He heard a grunt of pain next to him, and turned to see a different blade lodged into Icyhot's arm.
Stain leaped above them. "You're not bad. I have something that needs to be taken care of though."
Katsuki's hand lit up as the villainous bastard aimed for the woman behind him, and he let out a feral growl as he put his other arm out to his side, protecting her.
Suddenly, a streak of green flashed past him, pulling the Hero Killer along with it.
"Olivia was right! I can move my body now!" Deku shouted back to them.
The Hero Killer let out a growl and elbowed Deku in the stomach sharply. Stumbling, Deku barely had time to move when Icyhot shouted, "Midoriya, dodge!" and ice shot towards the villain.
Suddenly, an arrow with a stone arrowhead shot past the ice towards Stain, honing in on it's target. Stain barely made it behind the ice before the arrow and ice both shattered in unison. Katsuki turned around to see the Pro shakily standing with a bow and arrow, his bloodied side trembling slightly.
"Native." Red said anxiously, apparently knowing the guy.
Stain went still, eye twitching as he stared at the Pro. "It's no use trying to pretend you're a hero now. A person's true nature doesn't change in just a few minutes." Stain taunted.
"It does when innocents are involved." The Pro said shakily, glancing at Red bleeding out in the dark alley. Stain's quirk must've worn off on her, because her entire body was trembling now.
"You'll never be anything but a freud who prioritizes his own selfish desires! You're the sickness that's infected this society and ruined the name 'hero'!" Stain yelled. His voice was off though, his eyes darting between them all desperately.
"That may be so, but these people are not. I cannot stand by as they suffer for my wrongdoings." Notching another arrow, Native let loose another tracking arrow.
Stain almost didn't dodge this one, surprised by the Pro Hero's words, but brought up his sword and sliced it out of the air just in time.
"Take Starry and get out of here!" The Pro grunted, notching another arrow.
"No! You'd die!" Red vehemently hissed, shifting anxiously before groaning in pain at the movement.
"He's not going to let us! Something clearly just changed in him right now, he's rattled!" Deku cried out as Icyhot and Katsuki both let off their fire.
The Hero Killer did indeed seem more desperate now, trying to find any opening to get to Red. Katsuki backed off slightly, taking a stance in front of her as the Pro Hero supported him from behind, and Deku and Icyhot moved around the frontlines.
"Our best option is to hold off until the Pros arrive." Icyhot agreed.
"Our best option is to kick the bastard's ass!" Katsuki growled, charging towards the villain. He didn't wait for their response, but he knew he didn't have to.
A column of fire shot next to him on one side, and a streak of green lightning on the other. Katsuki felt a smirk on his face as he shot off explosions in one hand, causing him to spin. Icyhot shot his fire into the spiral Katsuki was creating, fueling his attack before allowing ice to crawl towards the villain.
Katsuki smirked viciously. Icyhot had the same thing in mind as he did. This villainous bastard was going to pay.
"Howitzer... IMPACT!"
"One for All... FULL COWLING!"
Red, green, and white collided in one blinding moment, the world seeming to shatter around them.
And as the smoke cleared, the three men's eyes widened.
The Hero Killer Stain, was no more.