The Everfree Forest
The morning sun rises, and near the outskirts of the Everfree Forest, there lay a pony in a small crater surrounded by burned flora, and scorched earth. The pony was surrounded by crackles of pure electricity as they woke up groggily with a pounding headache. They had a (M/C) colored mane, and a (C/C) colored coat to go along with it.
That pony was none other than (Y/N).
*Groans groggily* "Wh...wha..what happened last night? That storm was insane."
(Y/N) then proceeded to attempt to stand up straight on his two feet, or in this scenario his hind legs, followed by him falling down on his flank.
"Oof! Man, my head is spinning. I need wa...wait."
He then notices that instead of seeing his two feet, he's now seeing what appear to be hooves, (C/C) colored hooves to be exact.
"What the?! Am I dreaming right now, or am I dead? Did my powers already get me killed?"
(Y/N) was now wondering what has possibly happened: Did he die from the storm or from his powers overloading him, or did that huge storm transport him somewhere, either to save him or to punish him for killing his best friend.
Either way, he then crawled towards a small stream which he noticed was close to the crater. Once he took a small drink of water, he also saw his reflection in the water, which also startled him when he saw that he was no longer human, but now what appeared to be a horse or something similar to be a horse, and was wondering why he also had a (C/C) colored coat.
He also noticed that he had a horn on the top of his head as well, now discovering that he had become a unicorn.
"Wait....I'm a unicorn now? A (C/C) colored unicorn? What in the world is going on? What the hell happened?"
(Y/N) then proceeds to attempt to walk around on his new four hooves, stumbling around in the process but manages to get a hold of it pretty quickly. Now wanting to get out of the forest, he struts away from the scorched crater and sees a path leading towards the forest's exit. Once he steps outside the forest, the bright sun starts to hurt his eyes once it shines down on his face. When his vision starts to return to normal, he hears a small hum and buzzing sound. Looking towards his horn, he notices that his powers had transferred to this new world along with him.
"Oh no... You came along with me too? But, are there other conduits here with me too? What will these people think of me when they see that I have these powers? What would they think about seeing a talking horse in general?", (Y/N) said with some concern.
Meanwhile...
In the small town of Ponyville, there is a small group of friends walking together towards the Everfree Forest on request of Princess Celestia due to her sister Princess Luna telling her about the events that had transpired last night.
This group of friends had included six individual mares that had represented their respective elements of harmony, the names of these ponies were Twilight Sparkle, a purple unicorn with a dark purple mane and tail with some pink and light purple streaks along with them, and had a cutie mark with a pink spark with smaller white sparks surrounding it.
There is also another unicorn that was named Rarity, a pure white unicorn with a curly dark purple mane and tail with three blue diamonds for a cutie mark.
There were two pegesi along with them, and one of them had a concerned look on her face, that Pegasus was named Fluttershy, she had a cream yellow coat and a long pink mane and tail with three pink butterflies for a cutie mark.
The other pegasus had a determined look on her face, that was the fastest mare in Ponyville, Rainbow Dash, she had a cyan coat, and as her name suggests, she had a rainbow mane and tail along with a cutie mark showing a cloud emitting a rainbow lightning bolt.
The last two were considered to be earth ponies, and one was wearing a Stetson hat and the other was very hyperactive as she was bouncing alongside the other ponies. The one wearing the Stetson hat was named Applejack, she had an orange coat along with some freckles, she also had a blond mane and tail, she had three apples for her cutie mark.
The hyperactive pony was known as Pinkie Pie, she had a puffy and messy dark pink mane and tail, and had a light pink coat to go along with. She had two cyan balloons and a yellow balloon for a cutie mark.
"So, Twilight darling, what did the princess tell you in your letter?", said Rarity questioning her friend.
"Princess Celestia said that Princess Luna had seen some sort of strange thunderstorm, she said that it seemed very unnatural to be precise, over the Everfree Forest. There were lightning strikes striking around the forest and some bolts were apparently striking in an arch, as if it was coming out of the sky, which even I would say would be weird.", Twilight said.
"That is very weird, us weather ponies don't even mess around with the weather around the Everfree forest, and besides, we didn't even have a thunderstorm scheduled around that time.", Rainbow Dash added on.
"Still, this is rather strange for the weather to be acting like this. Hopefully, we don't have to resolve to using the elements again.", Twilight said.
"I hope we don't have to come across something scary.", Fluttershy said out of concern.
"Oh, maybe there was some kind of late-night party going on! Maybe the lightning was just for some kind of special effect for some kind of rave!", Pinkie said with a grin.
"I don't think that's the case, Pinkie. The Princesses have some concerns about what had happened last night, and possibly the storm might have caused something that maybe they can't control.", Twilight said to Pinkie.
The Mane 6 had then trotted onwards towards their destination, and little did they know that soon, they'll come across something that they have possibly never prepared for...
Meanwhile...
(Y/N), now realizing that he is now a unicorn and still lightheaded, had trotted out of the Everfree Forest and now stumbling along the path across a grassy field. His mind was still flooded with many questions, and regret from killing his best friend. The electricity buzzing around his horn had emitted sparks from time to time but, nothing too crazy had happened to his powers, not yet anyways.
"Man, what am I going to do? Did I really deserve this? It was an accident, that's all it was! It was just an accident!"
(Y/N) was just about to collapse from all the dizziness when, all of a sudden, he thought he had heard what sounded like hooves clopping along the trail ahead, and heard a feminine voice coming from where the trotting hooves had originated.
"Hey! Who's that?"
(Y/N) had looked up and saw six very colorful horses, and also thought he saw one of them flying. Before he could have said anything, he had passed out from exertion causing those said horses to react with much concern.
"Oh, my goodness! He's hurt!"
"He looks like he's covered in ashes! It's dreadful!
"I think his condition is much more important than his looks Rares."
"Come on, we need to take him back to Ponyville Girls!"
The rest of Mane 6 agreed with Twilight to help this stallion, and due to being much more experienced with magic and being that respective element, she had picked up (Y/N) with her magic and carried him over to Ponyville. They could have also sworn some kind of buzzing emitting from him when they traveled back to town.
'Maybe this stallion might know something about the thunderstorm last night.', Twilight thought.