When Supergirl arrived at the scene, she saw Reactron blasting her city apart.
"Reactron." Supergirl shouted as she landed on the ground in front of him.
"You. I was wondering what I had to do to get your attention. I can't wait to see the look on Superman's face when he finds out that I killed his baby cousin." Reactron said derisively.
"We'll see about that." Supergirl said as she used her cape to block his first energy blast.
"Pathetic. At least the man of steel could take one blast to the chest before needing to hide behind his cape." Reactron mocked as Supergirl grit her teeth as she proceeded to blast him with her heat vision.
"That tickled." Reactron said, though he had been pushed back a few feet.
"Come on, there's got to be a way to beat him without trashing the city. Fight smarter, not harder." Supergirl said to herself, trying to think of how to beat him when even her cousin hadn't been able to do that.
"Supergirl." Lena's voice said in her earpiece.
"What is it?" Supergirl asked.
"I think I have an idea on how you can stop Reactron for good." Lena said.
"How?" Supergirl asked as she dodged another blast from him.
"I portalled to the island as soon as you left and I've been using our satellites to scan and analyze Reactron's gear and it turns out that if you disable his suit's power core, his gear will shut down and he won't be able to move." Lena said.
"Great, so how do I do that?" Supergirl asked.
"Really, you're a genius and you can't figure that out?" Lena teased.
"Not now. Just answer the question." Supergirl said.
"You need to yank it out of its matrix, but the catch is that the core is made up of Thorium 232." Lena said.
"That stuff's radioactive, if I remove it from its containment matrix, it'll nuke the city and there's no way I can get him to stay still long enough to take him somewhere for the core to detonate safely." Supergirl said.
"You don't need to. If you can encase your hand in lead before you yank it out, you can safely remove the core and then fly high enough to chuck it into space where it can detonate safely." Lena said.
"One problem, I'm not exactly seeing any sources of lead and I can't exactly abandon this fight to look for it." Supergirl said as she flew straight towards Reactron and managed to send him flying back with a punch.
"Decent sucker punch." Reactron admitted as he blasted her again and this time, Supergirl took the blast right to the chest and she had to admit, it was intense, but she managed to power through it.
"Impressive, but not enough." Reactron said as Supergirl used her x-ray vision to search for lead and saw an old manhole cover that was coated in lead.
"Jackpot." Supergirl said she used her heat vision to melt the manhole cover and stuck her hand in, encasing it in lead.
"And what was that supposed to do?" Reactron asked, only to have Supergirl grin.
"It'll allow me to do this." Supergirl said she held out her lead encased hand to block his energy blast and fly straight towards him and used her lead encased hand to grip his power core.
"Time turn you off Reactron." Supergirl said as she yanked the core from his armor and thankfully, the lead on her hand managed to keep the core stable and Reactron fell to the ground.
"How?" Reactron asked feebly as everyone looked at the scene in awe at seeing Supergirl do something that Superman never could. She defeated Reactron in their first battle.
"You made the same mistake everyone else does. You may have come to my city, but you expected me to call Superman for help. Like I was his sidekick. But I'm not him, I don't just rush into battle and try to win by punching my opponent harder than he can punch me. Maybe now you and the rest of the world will truly realize this. I may wear the same symbol and share the same blood as him, but I am not Superman. And that is why I won. Because I didn't fight you like Superman would've. I fought you as myself. Now, I need to get rid of this thing before it does any damage." Supergirl said as she took off and flew as high as she could, grateful that Kryptonians, when charged by the energy of a yellow sun, could breathe in space (I know that's not the case in Supergirl, but it is the case in Superman and Lois and most other media, so I don't really get why it's not in Supergirl, but it will be the case here).
After she exited Earth's atmosphere, Supergirl tossed the core as far away from Earth as she could while she hovered over the Earth and watched it explode harmlessly in space, where no one would get hurt.
As she turned back to Earth, Supergirl couldn't help but pause and smile as she took in the view in front of her.
"Kal was right, this view is amazing." Supergirl said as she took in the majesty that was Earth as she flew back down to Earth.
When Supergirl returned to National City, she smiled when she saw that Reactron was still on the ground where she'd left him, struggling to get up as she landed on the ground and put her foot on Reactron's chest to keep him pinned down as the authorities arrived.
"We'll take it from here Supergirl, but thank you. You did what Superman couldn't and with far less property damage than any of Superman's battles with this freak." one of the officers said as they locked some kind of collar on Reactron's neck. A collar that Supergirl recognized as a power dampening collar that was pretty standard issue for prisoners like this.
"Thank you. Be careful with this one." Supergirl said and the officers nodded as they picked Reactron up and led him towards the truck that would be taking him to prison.
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SuperCorp Chronicles
FanfictionAlternate reality where Kara chose to become scientist instead of a reporter. Kara Danvers and Lena Luthor never thought that they see each other as anything more than rivals. But a chance encounter at their college reunion changed everything in mor...