Crossover between Gotham and Arrowverse. I've always wanted a crossover between the two shows/universes. Started this. Obviously didn't finish it. That's why it's in here, haha.

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The Legends had faced many threats before. Immortal psychos, meta humans, aliens, even demons. But they had not yet faced a good old fashioned crazy lady. No powers. No insane training. No alien biology. Just a normal everyday lady who once ran a high maintenance pub. She had something the Legends never quite encountered. She was normal. At least that’s what she appeared to be. And that’s what she wanted. Her ability to be normal, fit in, and relate to people was her superpower, so to speak. Which completely caught the team of super heroes off guard. They were not at all prepared, when the crazy lady entered their ship randomly.

The Legends were scattered throughout the Waverider, lazing around. Zari was the first to spot her. She walked in, like she owned the place already. Zari frowned at her, confused.

“Who the hell are you supposed to be?” she asked.

The woman scoffed as if the answer should be obvious. “I’m Fish Mooney.”

“Okay...What are you doing on our ship? How do you even know about it? Did we screw up the timeline again?”

“Look, I’m not totally sure myself. What’s your name?”

“Zari,” she told her. “Zari Tomaz. Let me call my captain. We can help you.”

Fish smiled. “Than you, Zari.”

She nodded, then pressed her hand to her coms. “Sara, we have a situation.”

Sara answered, “What’s up, Zari?”

“There's a woman down here. Her name is Fish Mooney,” Zari said.

“Uh, like a real woman? How did she get here?”

“Yes. A real woman. She said she doesn't know how she got here. I told her we could help her.”

“Ok. I’ll be right there.” Sara then appeared from the hallway a few moments later.

Zari introduced Fish to the Legends’ leader.

Sara smiled warmly. “We’ll get this solved in no time. Where are you from?”

“Gotham City,” Fish said, putting on her best fake smile.

“2018?”

“That's the date isn't it?” Fish asked, looking confused as to why she would be asking about the year.

“Yup!” Sara acted as if it was a normal question. “Just follow me to the bridge and we’ll get you home.”

Fish smiled and followed her, acting like she was just an innocent lost soul.

“How exactly did you get here, Fish?” Sara asked as they walked down the hall.

“Well as I told your friend, I'm not really sure. The last thing I remember is...dying.”

Sara frowned. “Maybe we should take you to our medical wing first.”

“Nonsense. I feel fine.”

“I still want to make sure,” Sara said and changed direction.

“Well, if you insist.” Fish followed her.

They reached the med bay. “Just take a seat there.”

Fish sat in the medical chair, looking around. A calm blue light descended onto her and medical readouts displayed on the nearby monitors.

“Fancy,” she commented. “Are you some kind of aliens?”

Sara laughed. “Nope. We’re just regular people.”

“With a spaceship?”

“It’s not exactly a space ship.”

“Then what is it?”

Sara ignored her and focused on the charts. Fish watched her

（〜^∇^)〜

So, I planned for this to go a little something like: Fish finds her way on to the Waverider, tricks the Legends, takes over the time ship, the Legends end up in Gotham, but they quickly find out it's actually on another earth. They call the other arrowverse peeps for help. Other peeps yeet over. They team up with Gotham peeps and take on Fish and whoever decides to follow her. In the Gotham time line it's right after season four, after her latest "death" and right before their final season. Sort of AU so Selina doesn't have to be shot.

I was thinking some people that would interact well together could be as followed:

Mick and Harvey

Jim and Ray and Barry

Barry and Penguin (it'll shock everyone)

Oliver and Bruce (after some time)

Oliver and Alfred

Diggle and Alfred

Selina and Mick and Leonard (after arguing over who's the better thief(ves)

And some people who wouldn't get along:

Leonard and Ed

Jim and Mick

Mick and Firefly (ironically)

Leonard and Mr. Freeze

But if you disagree with any of that, you can change it as you see fit. Feel free to place in an app if you're interested in taking this prompt :)