(EDITS MADE: 1/11/17)

The Batman of Remnant

Full summary: While stopping a heist with Superman planned by the Joker and Harley Quinn at Lexcorp, a portal is accidently activated and sucks in Batman. Now trapped in a new world, the Dark Knight must adapt in this new environment while stopping new threats and being hunted down by Hunters and Huntresses in-training as they suspect he might be a creature of Grimm. However, are these teens friends or enemies? And will he ever return to Earth?

(A/N: Greetings everyone! Welcome to my fanfic, 'The Batman of Remnant'. Originally, I was going to upload 'Deadpool Kills the RWBY Universe' first, but I might re-write most of it even though I've been working on that fic longer than this one. Don't worry though, I will put it up soon. Anyway, I want to let you know that this version of Batman takes several things from the movies and video games, mainly Batman: Arkham Knight and Batman V. Superman: Dawn of Justice. For example:

The Batsuit he's wearing is from Batman: Arkham Knight.

He has the microphone/ voice changer from Batman V. Superman: Dawn of Justice.

Bruce has Kevin Conroy's voice when he's not in the Batsuit.

His fighting style and gadgets are mostly from the Arkham games and partially from Batman V. Superman.

More will be shown as the story goes on. Anyway, I hope you enjoy it.)

P.S. I'll have some of the other DC characters make cameos in future chapters. Another thing to let you know, the appearances of Superman and Wonder Woman will be based off of Man of Steel and Batman V. Superman. The others will be from video games or other movies (it doesn't matter if it's live action or animated).

P.S.S. Since this is my first fanfic on this site and my writing style isn't the best, please leave some advice and constructive criticism in the reviews so that I can improve my writing. Just be nice about it and don't be crude or mean. I would gladly appreciate it!)

Chapter 1: The Heist

Disclaimer: I own nothing. Batman is owned by DC Comics and RWBY is owned by Rooster Teeth and Monty Oum (R.I.P.)

The Joker and Harley Quinn, 2 of the most deadliest criminals in the world. Recently, they've stolen a medium sized piece of kryptonite from one of the most dangerous gangs in Metropolis. After hearing about this, Superman called on his Justice League teammate and friend Batman for assistance. For weeks they have been searching both Metropolis and Gotham for any sign of them, but have come up with nothing. Now, it was just a matter of waiting. Both heroes were going over the available evidence they had until they received a report of an ongoing break-in at Lexcorp. This was their chance of capturing them once and for all. The criminals made their way to a robotics room where they plan to put the Joker into a suit and equip it with pieces of the kryptonite they stole. The rest of the rock was made into bullets.

The Clown Prince of Crime was about to be settled in to the suit until the doors slammed open and revealed a furious Lex Luthor. The CEO of Lexcorp was less than pleased that someone would attempt to steal his technology, especially if that someone is the Joker.

With an RPG in hand, Lex yelled at the clown,"JOKER! I'm just gonna say this once. Get out. Of the suit. NOW!".

The Joker, unnerved, cheerfully replied, "Lexy! Long time no see. What's with the rocket launcher? Don't you finally want to accomplish your goal and kill Superman?", the Joker rebutted.

It's true. For years he has made numerous attempts to kill the Man of Steel. After his last incarceration, Lex swore that he was a changed man, and this time, he's actually keeping his word, much to the surprise of the citizens of Metropolis, the world, and even the Justice League. The League is still keeping him on their radar in case this is a trick.

"Not anymore!", yelled Lex before firing the RPG at the robotic suit along with most of the kryptonite. Joker and Harley quickly jumped out of the way as the rocket destroyed the suit.

Harley gets up and blindly fires her machine gun at Lex, who dodged them, before the Joker shouted, "Don't waste the bullets! They're for Superman!".

Then, as if on cue, a large BOOM erupted. When the smoke cleared, there was a hole on the side of the building showing the city outside. Suddenly, out of the hole emerged the 'World's Finest', Batman and Superman!

Joker yelled, "WOOHOO! The party guests have arrived!".

Superman replied, "It's over you two. Give up now and no-one gets hurt.".

The clown and his girlfriend laughed and said, "Over already?! No way! We're just getting started!".

Using his x-ray vision, Superman finds that there's kryptonite bullets in the machine guns Joker and Harley were using. He would need to be extra careful in order to defeat them. Batman suddenly attacked the Joker by kicking him in the face and sent him flying out of the room. Harley then shot at the Man of Steel, but his speed was too much for her to keep up. Eventually, she ran out of ammo, but the bullets on the floor still slightly weakened him. She used this to her advantage and attempted to hit Superman with a baseball bat, but using all the strength he had left, he punched her into a crate of weapons that were to be destroyed by Lex.

Harley looked at the weapons while Superman got rid of the kryptonite bullets that were on the floor. She saw a black lazer type weapon that shoots out red sun energy and temporarily shuts down his powers. Quietly, she aims it at Superman and fires the weapon. The beam hits him and the back and he falls to his knees. Harley grabs her bat and slams it across his face. She hits him 5 more times until he got a hold on the bat and counters her attack. The weakened Superman threw away the bat and fought her in hand-to-hand combat. Thanks to Batman's training in martial arts and pressure points, the Kryptonian easily took down the Joker's girlfriend and render her unconscious.

Superman slowly got his x-ray vision and enhanced hearing back, but he still can't fly and he isn't back to full strength. He found Lex in a safe hiding spot just outside the robotics room.

He walked up to him and said, "You need to get out of here. Even though one crazy psycho is down, there's another one here somewhere.".

The former nemesis of Superman got up and replied, "Not until I see both of them in handcuffs. Just to let you know, I was gonna destroy the weapon Harley used when I first heard of their activities here. Should've done it sooner.".

Just as the Man of Steel was about to respond to that, they 2 heard loud bangs coming another room, along with a white light that seemed to get brighter.

"No. Nononono!", exclaimed Lex as he ran to the location of the light, with Superman following him.

Earlier:

Batman threw the Joker out of the robotics room and battled the clown as they trashed room after room. The Clown Prince of Crime attempted to shoot the Caped Crusader multiple times, but to no avail. Batman threw a few explosive Batarangs at the Joker and met it's mark as he was sent flying into another room. Little did both of them know that the room they entered was labeled:

Lexcorp Portal Dimentional Testing Site

The 2 arch rivals battled it out as both were destroying the equipment of the room. Both threw massive punches and kicks to each other as none would give in to their opponent. Batman landed a devastating punch to the Joker's gut before picking him up, and throwing him at one of the machines. The impact sent out a burst of electricity and soon after, the machine activated. Batman quickly looked around the room and noticed the situation he was in. He saw the portal slowly turning on as he threw the Joker out of the portal room. The Dark Knight attempted to shut the machine down but was unsuccessful as the portal increased in light and power. Batman knew he had to get out of there.

Using his grapple hook, he attempted to launch himself out but the portal was not giving him the chance. Now, he could only hope Superman arrives in time to help him.

Now:

Lex and Superman ran to where the light was coming from to solve what was going on. As he was running, Superman noticed a room up ahead labeled: Lexcorp Portal Dimentional Testing Site. The Man of Steel was about to ask the CEO of Lexcorp about this until they got to their location. Superman and Lex looked on in shock as they saw Batman holding on to his grapple hook in attempt to avoid getting sucked in to the portal.

"There you are! You've got to help me Kal. I don't know how much longer the hook can last!", exclaimed Batman, as he waited for Superman to help.

However, Superman replied, "I can't! Harley used a red sun energy weapon on me and I don't have full strength or my flying ability back!".

That was when Batman realized that no matter how hard both men tried, he'll still get sucked into the portal.

Batman, surprisingly calm, said to him, "Listen to me. Don't worry about where I ended up. Just get the rest of the League and Luthor's help to find me!".

Superman was about to reply until the hook lost it's grip to the wall. Then he heard Batman say his final words as he got sucked in:

"Good luck Superman.".

As soon as he disappeared...

*BOOM*

...the portal was destroyed and the shockwave sent Superman and Lex a few feet back. As they got up, they saw the remains of the portal. Almost all of the equipment was destroyed and the only thing showing on the screens were a set of some coordinates that Batman could've ended up. Lex looked around the room and spotted the Joker, unconscious on the floor. Superman picked him up and returned to the robotics room where Harley was still there, knocked out. After setting him down, he activated his communicator to contact another member of the Justice League, Wonder Woman.

"Diana, it's Superman. We've got a problem..."

Unknown location, unknown time:

Batman slowly woke up after slipping into unconsciousness after being pulled into the portal. He observed his surroundings and found himself in a forest not different from any of Earth's forests. It was nighttime at this moment. As Batman tried to figure out what was going on, he just happened to look up and see...

...a shattered moon. Batman was surprised to see such a sight like that. However, he didn't have time to sightsee. He needed to find the nearest city (if there is one), and do some research about this place.

Little did he know that a pair of glowing red eyes was watching him leave...

(A/N: That's it for Chapter 1 of 'The Batman of Remnant'. Sorry if the fighting scenes sucked, but I hope I can improve them with your help. Like I said in the beginning, please don't be crude or mean when leaving advice. That's just not cool. Anyway, see you all soon!)