Rainbow Dash Kills the MLP Universe

by UTF

Rating: mature
Tags: Dark, Alternate Universe
Length: 3201

When Twilight uses Rainbow Dash as a test subject for a new spell, something goes horribly wrong.

Inspired by Punisher Kills the Marvel Universe and Deadpool Kills the Marvel Universe. When Twilight uses Rainbow Dash as a test subject for a new spell, something goes horribly wrong.

Gore tag for some descriptions.

Published 1970-01-01 00:00:00 UTC
Last updated 2015-11-19 02:09:44 UTC

Chapter 1

Rainbow Dash prided herself for the clear skies, even if it couldn't be easier for the fastest flyer in Ponyville if not Equestria. However, she would always save a comfortable cloud for her nap. After all, nopony could stand being so awesome without getting tired. So, she took one.

"SPIKE!?" a voice, belonging to no other than the princess of friendship herself, awoke her from her slumber. The voice continued until Rainbow Dash simply could not even enjoy resting on the cloud. She could not take it anymore, she had to find out why Twilight would keep calling for Spike. So she flew into the massive castle using her prefered way of entrance: the window.

Any other pony would have been surprised by the sound of a shattering window but Twilight had long got used to it.

"Rainbow Dash, this is the twenty third time you crashed into the place already, and thats not even counting to the Golden Oak Library! " Twilight said with a annoyed tone as she got a broom with her magic.

"Well, I wouldn't be here if you didn't interrupt my nap by keep shouting Spike's name which by the way, why are do you need him?" Rainbow Dash asked as she got up.

"Well, I got a new spell I wanted to test. Have you seen him?" Twilight answered. Why on Spike? Well, dragon scale are normally unaffected by magic. Since Spike is a baby dragon, he would be affected but the spell would wear off after a hour or two.

"I saw him this morning. He said that the CMC invited him for a party at their treehouse for celebrating them getting their cutie marks and a sleepover after that. He also said that if you asked,  you were to focused on your studies than you didn't even acknowledged that he was there." Rainbow answered.

"What!? But this spell is very important! It could a breakthrough in magic! It could be the very first mind reading spell! Without Spike, I there is no others that I could test the spell on and I have to wait until tomorrow to test and improve it." Twilight said while she looked very disappointed.

Rainbow Dash, being the loyal friend she is and how Twilight looked disappointed,  volunteered herself as a test subject. Twilight had some doubt at first but she eventually agreed though not after asking if Rainbow was sure about it. For a moment, Rainbow could have sworn that she saw a very slight blush on Twilight' face but she thought that she was just imagining things.

"Well, here we go!" Twilight said as she begun charging up magic. After a second or two, she fired a blast from her horn. The blast was powerful, so powerful in fact that it Rainbow was knocked into the piles of books.

"That's not supposed to happen!" Twilight panic as she rushed towards Rainbow. "Are you okay? I'm so sorry!"

"I'm alright, Twilight. No need to worry." Rainbow seemed unharmed. Kill her "Huh? Twilight, did you say something?"

"No, why? Come on, let's get you on the sofa so you can rest and I can see if there is anything wrong with you." Twilight said as she helped Rainbow up.

"I am perfectly fine, see?" Kill her Rainbow shook her head to try to ignore the voice in her head. Kill her Each time it grew a little louder.

"Um, I think I need to go." Rainbow quickly took off and flew away from the castle.

"Wai-" before Twilight could continue, Rainbow was already out of sight.

After arriving in her home, Rainbow laid on her bed as the voice grew louder and louder. Kill her, Kill them Rainbow tried everything she could to try to stop it including a cold shower,  a hot shower and flying among other things but none of those worked. Kill them all Eventually,  she gave in. It just keep getting a louder each time that she could hardly think about other things anymore.

If you can't fight it, join it. But first she need to plan first. She would have to plan to how to deal with the likes of her friends, the princesses and Discord. Now, he would be hard to deal with. He practically can't die. So she would have to find some way to get her friends to somehow use the elements on him.

She had a lot more to plan but for now, she had to go to sleep. She had been planning for hours now and tomorrow, she would start to execute some of her plans.

Chapter 2

The next day

"You wanted to see me?" Thunderlane stood outside of Rainbow's home after she opened the door.

"Ah, yes. Please come in. I would like to talk to you about your attitude at work for the past few days" Rainbow invited him in and closed and locked in the door after he entered.

"Um, could you switch on the lights? I can't see a bucking thing in this place." Thunderlane said.

Rainbow picked up the knife on the table behind the door. "That won't be necessary,  soon it will be lights out forever for you."

Puzzled,  Thunderlane tried asking what she meant. " What's that supposed to me-"

Before he could finish his sentence,  Rainbow used the knife and it went through Thunderlane's head.

"Sweet dreams..."

Ah, the first kill. It was special. Thunderlane's body dropped to the floor on Rainbow's house. After grabbing some clouds, Rainbow covered Thunderlane's body. Good thing smell are unable to go though cloud or Rainbow's house will stink so much right now.

She continued to this for many other ponies: off lights, invite ponies in, close door, sneak behind them and go for the kill. She was successful most of the time. However, if she somehow failed her sneak attack, she would just out speed them and kill them anyway.

She have killed Thunderlane, Cloudchaser, Flitter, Cloud Kicker and Blossomfourth in two short days.

Now, its time to go on the next part of her plan. She dumped the bodies right in front of the portal that connects Equestria and Discord's dimension. She alerted her friends about the bodies and framed Discord for it, saying how Discord must have killed them because he just could not stand without some chaos.

They all, other than Fluttershy, brought the story agreed to use the elements and stop Discord from harming anymore ponies. Fluttershy simply could not believe that Discord would do such a thing and that he was reformed.

"Fluttershy,  the facts are right there!" Rainbow said.

"But-"

"No buts. Come on and take the element and let's stop Discord for good."

"You still don't have prove that ot was him. There could be somepony else who framed him."

"I'm sick of this. Come on, girls if she wants to do this the hard way, we will have just have to do this the hard way." Rainbow told the other four.

And thats what they did. They dragged Fluttershy to the portal and waited for Discord. They all had to look at the gruesome bodies of the five ponies. Rarity fainted, Applejack vomited, Fluttershy hided behind a tree, Pinkie looked the other way while Rainbow pretended to look disgusted. Twilight using her magic digged five holes and buried their bodies. The four were convinced that Discord killed the five innocent ponies and he must be stopped once and for all. While Fluttershy was slowly starting to think that Discord was indeed the one who did this.

After a while, Discord went through the portal and arrived in Equestria.

"Ah, my little ponies! What are you doing here?" Discord asked.

"Cut the act,  we are know what ya did!" Applejack shouted.

"What did I do?" Discord remained clueless what the six are talking about.

"Ya killed five ponies!"

"Come on! Let's just turn him back to stone already!" Rainbow Dash shouted, a little afraid that Discord would figure out it was she who killed the five ponies.

"Rainbow's right!" Twilight said before they activate the elements.

Before Discord could teleport away, the rainbow hitted him and he got turned into a still, lifeless statue.

"I will inform Princess Celestia what happened and tell her to send a few royal guards to take Discord away. I would also arrange funerals for them tomorrow" Twilight said.

The other four ponies agreed and left quickly, clearly disgusted by the corpses. When Twilight tried to leave, Rainbow stopped her and said "Um, actually, how about I take care of Discord? I know a just the place to put him so he won't able to absorb any chaos so he could escape like the first time we saw him."

"I don't know, this is a very important task and I think that it is better to-"

"Just trust me, alright?" Rainbow asked as she sweat a little.

"I guess, its alright but be carefully, okay?" Twilight agreed reluctantly.

Without answering, Rainbow carried the statue and flew off.

Back at her home, Rainbow attached  some explosive to the staute.

"3... 2... 1... and Discord is down". A smirk crept on Rainbow's face as she saw the pieces that was formerly known as Discord.

Chapter 3

"So, how do I use these again?" Rainbow asked the thought in her mind. Pull the trigger while it is aimed at the target

"Alright, whatever you say, voice in my head. Also, I should really give you name. It is quite annoying to call you voice in my head." Rabidus "Huh, that sounds quite cool" Rainbow agreed.

"So, who do we kill next? Our friends or the alicorn princesses?" Rainbow asked Rabidus. Lets deal with the easier ones first.

"Friends it is. I practically don't need to plan for Fluttershy and Rarity. Applejack and Pinkie might a litte troublesome but the hardest one is Twilight. I think I will just deal wi- huh?" Rainbow was interrupted by none other than her own pet turtle tortoise,  Tank who accidentally crashed into the wall.

Tank seemed very afraid. "Oh, hello, Tank. How would you like to be my first target for this gun?" Rainbow said as she raised her hoof up and aimed at Tank's head.

BANG

Tank's head exploded and blood splattered everywhere. It was like the cloud house was made out of blood. Tank's body just remained airborne due to the magic propeller.  "Huh, didn't know that Tank had so much blood in his little head. Oh well, at least it was awesome." Rainbow said as she examined her house.

Realising that she was stained in blood as well, she took a bath. After she finished her bath, she heard a knock on the door. It was Fluttershy.

"Oh, um, hi Rainbow. I heard a loud bang when I was helping a few animals and then they ran off and hid. I wanted to see if there was anything wrong before I find them and tell them its ok. So, is, um everything ok? Um, if you don't mind answering." Fluttershy said very softly.

"Uh, yeah. Why don't you come on in? I was having fun with Tank. Why don't you join us?" Rainbow asked, realizing the opportunity to kill Fluttershy.

"Oh, um alright but I must go quickly to help my animal friends." Fluttershy said before entering. When she entered she saw the headless body of Tank. "Oh my" Fluttershy screamed.

"See, fun." Rainbow raised the gun.

BANG

"That was easy. One down, four to go." Rainbow said victoriously.

Don't celebrate yet we have more work to do

"Alright, alright. No celebrating yet. I think will even buy that sniper rifle." Rainbow said as she flew to the place where she brought the gun.

"So, you're back. What else do you want?" the shopkeeper asked.

"Sniper rifle." Rainbow answered.

"Ah, yes the one designed to kill from a long distance.  That will be 500 bits."

"Oh, I think I can get you something better." She took the gun and aimed at the shopkeeper.

"Um, calm down. I can sell it for half price?" Rainbow ignored the offer. "Um a quarter pric-"

BANG

"Or you could just die and give it all to me"

She all the weapons she could find and took it back to her blood stained house and took the sniper rifle to assassinate her friends.

She killed Applejack, Apple Bloom, Big Mac, Granny Smith, Rarity, Sweetie Belle, Pinkie Pie and the cakes by the end of the day. She decided to kill Twilight tomorrow as the castle wall blocked all of the bullets Rainbow fired. Tomorrow she will take the knife and a gun and go in the castle but not before a little fun with the ponies in town.

Chapter 4

"Ah, its so beautiful. Corpses everywhere, everypony panicking." Rainbow Dash said to Rabidus. Indeed but we both know we need more

Rainbow just smiled at that comment. "I think enough fun with Ponyville for now. I am going to see Twilight."

Rainbow Dash, maybe for the first time, knocked on the door of Twilight's castle. After a few seconds, the door slowly opened. It was Twilight.

"Rainbow Dash! Come on in! Before whoever killed all these ponies get to you too!" With that, Rainbow Dash entered the castle.

"Rainbow Dash, tell me, what should I do? Ponies are dieing outside while I can't do a single thing! I already teleported Spike and Owlicious to Canterlot but I decided to stayed here to get a plan going." Twilight was panicking. Maybe more than that one time she didn't have a friendship report to write Princess Celestia.

"Well, you will have to take cake of the killer."

"Yeah but I don't know who they are." Twilight looked though her books.

"Well, I do" Rainbow said as she prepared her knife.

"You do? Who?" She threw her books aside.

"Me." Rainbow took her knife out and stabbed Twilight in her hoof. Twilight was clearly in a lot of pain. She was also very surprised. Rainbow Dash took her gun out and aimed at Twilight.

Before Rainbow Dash could fire, Twilight teleported away. "Fuck! Where is she?" Rainbow searched the whole castle but to no avail.

She obviously teleported to somewhere safe "Of course I know that, but where is she?!" She probably went to Canterlot to inform the other princesses.

"Oh, no. How am I supposed to deal with them?  I have not plan that far yet." Blow the sun and moon up. Their lifes are connected to them.

"Alright and how am I supposed to do that?"  I don't know, just attach a lot, and by a lot I mean enough to blow the whole planet up, of explosive to a rocket and fire it at the sun and the moon

"I see so much flaw in that plan and I love it." Rainbow Dash gathered all explosive she could find and attached it to two rockets. She fired the rockets into the sun and moon.

After a few minutes,  there was a huge explosion and forced Rainbow to shut her eyes and cover her ears with her hoofs. When she opened her eyes, there was no sun or moon anymore. It was like that moment when the sun set while waiting for the moon to rise  except that it never came the moon never rised.

      A few minutes before the

                   explosion

"Are you saying that Rainbow Dash have gone crazy and killed most of the ponies in Ponyville?" Celestia asked Twilight.

"Basically, yes! She tried to kill me too but I managed to teleport out before pulled the trigger of her gun" Twilight said as she showed Celestia and Luna her stabbed hoof.

"Guards! We need to all of you to be sent to Ponyville to arrest Rainbo-" Celestia was interrupted by an explosion.

Both Celestia and Luna groaned in pain before vomiting blood.

"She must have did something to the sun and the moon. Twilight you must stop her from-" there was all Celestia could let out before she and Luna fell the ground, dead. All the guards and Twilight gasped in horror that their rulers died right in front of them.

There was a moment of slience. "No matter what Rainbow Dash must be stopped." Twilight said to no pony in particular with determined look on her face.

Chapter 5

                A few months later

"Princess Twilight, we have bad news! Manehatten is wiped out!" a royal guard informed with a grim look.

"Fuck. Is there any other city or villages that can be saved? Any at all?"

"No, princess. Its just Canterlo-" a bullet went straight through the guard's head.

"Oh no. She's here" Twilight looked around desperately.

I know she's fast but how does she keep evade capture? Twilight thought. She has somehow managed to take out every city in Equestria and I think some that are not the Equestria as well. Trottingham, Las Pegasus, you name a city, she's taken down that city. It's impressive a single pony could do all that.

"Rainbow,  come out. I know you're there. I also know how you do things. If you're here, that probably means you already taken out the rest" Twilight gulped. "Of Canterlot."

"Hehe, that's correct egghead. Its just you and me right now" Rainbow dropped down from the above.

"How are you able to do it so fast? And no signs of regret or hesitations at all" Twilight backed away slowly.

"There's reason why you don't see me perform a sonic rainboom in cities.  I break the sound barrier, so there will be a major explosion. As for your second question,  the answer is you. You brought Rabidus into my head." Rainbow answered with a knife in her hoof. Gun presumably in her wing.

"Me? What do you mean?"

"For a egghead, you sure don't know a lot of things.  Remember that spell you tested on me months ago?"

Then it clicked. It was the spell months ago. It was the spell that she casted months ago.

"I'm sorry, but I can still help you. I can still get rid of Rabi-um whatever-you named-it of your head." Twilight said as she begun charging a spell that will knock anypony out.

Then she fired it. Rainbow was hitted and fell down to the floor.

"I am sorry for that. When you wake up, you will be normal again. Don't struggle." Twilight walked towards Rainbow.

Twilight walked closer and closer to Rainbow until she was able to touch Rainbow. But in doing this, she doomed herself.

"Surprise." Rainbow got up and stabbed Twilight in her torso. "You really think that I would just come here without any backup plans?"

"Any last words?" Rainbow asked.

"Yes, actually. Rainbow, I always wanted to tell you this: I always had a crush on you. But I guess that doesn't matter anymore.  You did it. Are you happy? You killed all the ponies in the Equestria." Twilight shutted her eyes for the final time.

"What?!" Rainbow was not ready for this at all.

Rainbow stood there for a few moments,  unmoving.

"No, there's one more left."

Rainbow took the gun of from her wing and aimed it at her head.

No, wait, what are you doing!?

BANG