The sun rose over the newly formed Canterlot, located in the center of New Equestria, as beams of light came down upon the moist leaves and beautiful meadows created by the transformative nature magic of Princess Celestia. As the city of ponies, both natural and ponified, awoke in the early hours, a young Royal Guard messenger sprinted at full speed through the streets. As he passed by street vendors setting up their carts, the smell of cooking hay wafted up to his nose.

He approached the gates of the massive castle Celestia had erected with her magic, skidding to a stop before the gates. He ignored the confused glares of the tired night guards, who wondered who this young private was and why he was sweating so much, taking a moment to breathe before he blurted out:

“U-urgent message for General Shining Armor and Her Royal Highness, Princess Celestia!” He said, snapping to attention, before flashing official documents from a guard comms station. The night guards shared a look, before stepping aside and opening the gate. The Messenger ran quickly up to the door, passing two day guards on their way to take the gatewatch shift, and sprinted to the doors behind the throne. As he ran through the halls, he quickly made his way to the war room, slamming the door open with his shoulder.

As he entered the darkened room with a loud bang, the dozen ponies who were inside, poring over maps and documents turned to look at him.

He then said, “U-urgent message for the princess!” and stood at attention again. From the center of the room, Shining Armor stepped forward, taking the letter in his magic, and turned to walk away, replying with a quick “Thanks.” He looked tired and very preoccupied as he floated the letter over to Celestia, who was huddled over a crystal hologram of the Mexico City Zoo rebel base, tracking the movements of the “Ponyslayer” with her hoof, and conversing with Twilight, who was scribbling on a clipboard concernedly.

Celestia opened up the letter and lazily read it over before looking back to her hologram, before realization overcame her eyes as they widened. She loudly blurted out, “HE HAS TWO MORE ELEMENTS? HOW?”, breaking her usually stoic composure, much to the surprise of everypony in the room. As the room collectively had a moment of awkward silence, Celestia coughed to herself, turning slightly red, before composing herself.

“Ahem, we have a problem. The “Slayer” has destroyed the forward base at “Buckingham Palace” in the human city of London. I need all of you to immediately get to work on finding out where he could have gone, learn everything you can about him. Use the scrying tech, and good luck, my little ponies.” She then turned to Twilight, who was sweating bullets and looking very concerned.

“Princess, what happened to Applejack and Rainbow Dash?” She said, looking very concerned. Of course, this was for good reason, as she had seen what the Slayer could do firsthand when Rarity and Fluttershy were rescued, severely injured, from wreckage of the Mexico City Rebel Attack Camp.

“Don’t worry, my student. They were both taken by a field medic team and are being flown back to New Equestria. The bigger concern here is this… “Ponyslayer” figure. He has taken four of the Elements, and appears to be a human, which means he knows of their power and is coming for us next.”

Twilight shivered to herself, thinking about what would happen if he made it past the Great Dome Shield that protected their island nation.

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The Doomslayer stepped out of a portal onto the bridge of the Fortress of Doom, feeling triumphant and victorious, holding his combat shotgun in the right hand and stolen elements in the other.

“Good Job, Slayer.” Echoed Dr. Samuel Hayden, speaking through the Fortress’s speaker system. “Please place them in the central power core, and I can begin fabricating more weaponry. As our power scales exponentially, I should be able to make most, if not the rest of your arsenal with this.”

The Slayer shoved them into the floating tube of raw energy that took the element necklaces and held them aloft, floating in the stream of raw power. The Slayer starred as tendrils of harmonic energy made their way upward and into the power unit, and the Fortress of Doom hummed louder as it powered up more and more, as the Slayer listened to Dr. Hayden.

“Slayer, I can create the rest of your gear, but it will take a while. I suggest you grab some more reading material.”

The Slayer slumped slightly and made his way over to his office, grabbing some books to read and kicking his legs up.

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Luna hurried through the halls, urgently heading somewhere. As she made her way down the halls, she turned into what appeared to be an empty storage room, she shut the door behind her and opened a closet and stepped inside. Her horn then lit up as she activated the secret lift.

As she slowly drifted downwards on the human-inspired magic elevator design, she mulled over what she was doing here. Was it morally correct? Probably not. Did she have a choice? Also no. As she considered the ethical ramifications of her unwarranted invasion of humanity, the elevator dinged quietly, signaling it had arrived. The doors slid open revealing a massive underground hangar, full of ponies in lab coats and armed guards ponies dressed in elite armor.
The head researcher, a lime-colored unicorn pony with a white mane, jogged up beside Luna, wearing glasses and having a lab coat over a serious-looking suit jacket. “Ah, princess, I am happy to inform you of my recent successes with a more potent ponification serum. This serum will convert the human over 23% faster, with estimates of reducing deaths while undergoing the ponification by 40%!” she excitedly told the princess.

The princess nodded along, not really paying attention, still preoccupied with her dilemma, until her elite head researcher said something that caught her attention. “-So, we have finally also found progress with these, uhh, demon-creatures you wanted us to study, Princess, and we have somber news. They are rather resistant to all attempted forms of conversion or biochemical attack, which leaves them a massive threat.”. Princess Luna then sighed dejectedly, realising her one hope of return to Equestria wouldn’t work out.

“A-also, we’d uhh, like to know if we are completely safe? There have been some… close calls, and...” The researcher trailed off as she realized princess Luna wasn’t really listening. Luna then snapped back to the conversation, saying;

“Good work, Minty. I wish you luck, however, I have something rather urgent. Continue developing a better ponifier, however. I should hope we have the most effective weapons possible, my little pony.” Luna then passed all of the scientists hunched over their little tables in groups and entered a small office on the other side of the cavernous underground research and development lab.

She shut the door behind her, then sighed, looking around her workplace. Tools were strewn all over as she walked around tables, until she reached a mirror-sized crystal in the wall. Her horn began to glow as the image changed to that of Equestria, showing scenes of burning cities, demonic humanoid creatures and ultra violent deaths of her little ponies, she felt terrible about Celestia's plan altogether.

Luna then sat in her chair, sipping on some tea held aloft in her magical grasp, and began to reminisce about the past few weeks.

The demonic invasion of Equus and Equestria came out of nowhere. An ancient, powerful force, ultimate in strength and endless in power, brought a demonic sickness to Equus. Using cultists and diseases, the demonic seeds for an invasion were raised. Unbeknownst to anyone, the end had begun.

As the nations began to report strange incidents within their borders, the Royal Princesses grew more and more afraid. As the different nations fell to demonic infestation, Equestria stood strong due to their connection to the elements of harmony, but that wouldn't stop the surrounding nations from falling and the world of Equus tumbling into an apocalypse. So, the Princesses began to research a way out of their predicament, settling on a last-ditch attempt to teleport the entire city of Canterlot and all of the surviving ponies away to another universe.

Their successful arrival on earth wasn’t unplanned, however. Luna always had suspected that Celestia had plans for earth beforehand, but she went with it anyway. As humanity fell, the Equestrian overtaking of earth looked better and better, until he came. The Slayer. Now, Luna was unsure if Celestia was doing the right thing AND also had to worry about the massive, powerful threat to lives of everypony, currently on the loose.

As she sighed softly, Celestia opened the door to Luna's personal research room, taking a seat next to her.

"Would you like tea, sister?" Luna asked, emphasizing the teapot on a table nearby.

Celestia sighed. "Not now, Luna. I have bad news. The Slayer got Rainbow Dash and Applejack."

Luna spit her tea out very un-royally, quickly turning to Celestia. "W-what? Are they alright?"

"Yes, my dear sister, our elements will live to fight another day. The only thing there is to worry about is the loss of the physical necklaces of the Elements of Harmony." Celestia sighed, saying; "However, what worries me more, is where the Slayer is headed next. He is blatantly hunting the Elements, meaning he is in the way here right now. I ordered Twilight and Pinkie Pie to safety in our Royal bunker, but we must prepare for combat. I'm afraid we will likely have to don our armor to defeat this beast, sister."

Luna sipped her tea, trying not to show her anxiety over this, then saying. "I cannot say I look forward to it. It'll be fun to see some combat once more, however." With that, the Solar and Lunar Princesses of Equestria left to prepare for combat.

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The deep, robotic voice of Dr. Hayden rang out through the halls. "Slayer, please come to the bridge. It is time."

The Slayer left his office, heading to the control room. "Slayer, your arsenal is fully fabricated, even featuring a BFG clone. However, ammunition is sparse, so use it wisely. When you are ready, I will open the portal." Dr. Hayden said. "Be cautious, Slayer. This is the capital of the pony empire, and there will be powerful opponents."

The Slayer, who was busy grabbing up all his newfound gear nodded, and then stepped up to the computers in a ring at the main console.

"This is the city of New Canterlot. The city and island are protected by a magical energy field, which I cannot create a portal inside of. You will need to obtain a water vehicle to make it there effectively, as swimming would be ineffective." The Slayer shrugged, still ready for the task ahead of him, and listened intently.

"The city of New Canterlot is closest to the bottom of South America, and you will likely find a ship on the 'falkland islands'. I am calibrating the portal now, Slayer."

The Slayer stepped back as the portal formed right before his eyes, then, he stepped forth into the unknown, preparing for the final assault at the root of all the ponies.

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In the Falkland islands, the capital, Stanley, was at peace. As the Slayer stepped out of his portal, he saw he was on the roof of some buildings. He looked around, the sun reaching its highest point in the sky, and saw ponies walking around in the place of humans. The Royal Guard had taken care of the conversions and already begun work on changing human buildings to suit Ponies.

As the Slayer snuck around on the roof, ducking whenever he saw a pegasus, he eventually caught a glimpse of the dock. He made his way over, noticing several guard ponies standing at the entrance to the dock. The calm city was about to get a lot less peaceful now that the Slayer was here. He quickly took out his rocket launcher, and fired it at some random building, creating a massive explosion. Chunks of glass and shingles fell from the half-destroyed townhouse, as ponies screamed in terror.

While the commotion went on, the Slayer grabbed his Auto Rifle and shot three clean bolts into the guards ponies at the dock, jumping off the roof and dashing for the boats that sat there.

"HEY, LOOK, ITS A HUMAN!" A Royal guard shouted, dressed in standard armor. "Get him!" He screamed, being followed by several of his comrades. The Slayer turned to this nuisance, as he was almost on the dock, and drew his shotgun. He cocked it back with a metallic clank, and prepared for combat. The young inexperienced Guards rushed him, while two unicorns cast spells to buff the guard that were chasing the Slayer.

The Slayer rapidly slammed his left fist into the first Pony, leaving him with severe been damage, before turning the second into a mass of burger meat with a single shot from his gun. The third pony, who seemed to have a magical shield around him, tried to stab the Slayer. He stepped out of the way quickly, then batted the shielded pony over the head with his gun with enough force to K.O. him immediately.

The pony just shoot it off, so the Slayer had a better idea. He jumped forward past the pony, sprinting towards the unicorns with great speed, dodging blasts of magic from one. He then swapped over to his Super Shotgun, turning the first unicorn into a fine red mist. Then he launched a grenade at the second, who panickedly tripped over himself trying to get away. As he turned back to the earth pony who attacked him, the unicorn behind him was vaporized in the blast, causing the magical shield to fall.

The Slayer then grabbed the pony and swiftly put his armblade in and out of it's skull before heading towards the boats, as spectators stared in fear and awe.

He ran down the dock, eventually settling on a simple craft with a single motor on the back, and tried to start the engine. It worked, to his surprise, and he drove off towards New Canterlot with determination.

Author's Note

Took me two weeks, I was busy and all that. Expect 1-2 weeks between chapters, I'm kinda inconsistent.

As per usual, please shit on my writing constructively, and enjoy this slightly shorter chapter.