Fall of Equestria meets Warhammer-ised Mane 6 from another AU. Dabuq? Frankly I'm worried about what was happening to me in May last year when this fell out of my head.
For those who don't know, "Fall of Equestria" is an MLP AU (anthropomorphic version) where the evil Caribou King Dainn somehow manages to overpower Celestia, Luna, the Elements of Harmony, Cadance, Discord etc. and turn Equestria into a Gor-like shithole where males are rape-crazed and females are nothing more than sex slaves. It's got its own TVtropes page and is frankly creepy. I have an unfinished fic where I subvert the whole dumb idea...
The buck ran. It wasn't as if he could do anything else. It wasn't as if he could think of alternatives, due to seeing his squad more or less annihilated by the camp of free mares that they'd found.
"Stupid" was the word that ran around his mind like a terrified rat in a trap. They'd been sent to investigate the thing which had fallen from the sky. Oh, he'd seen it. The dual-headed alicorn emblazoned on its sides. The initially surprised party of mares – and the monsters that had been waiting inside the machine.
Attempting to take them, like any true male should, had instead enraged them. They'd fought with a skill and strength that was not of this world – and then their metal guards had emerged.
With even worse weapons.
That had turned Captain Haalsen Stonehoof into bloody vapour.
So of course he ran. Someone had to survive, to raise the alarm, to return with a proper war party and subjugate these abominations. It was only right –
His ears began to hurt. Like when those metal monsters had emerged, each one whining just at the edge of hearing, non-stop, and it hurt.
Then he was flying, a short flight that terminated in a tree.
A huge hand spun him around, and once his eyes lost the stars, he saw inside one of the monsters.
It was a mare.
In an armoured suit.
Her eyes were blue, her mane was pink, and her expression could be described as serrated.
"Now," she said quietly, "you should be ashamed of yourself. Attacking us like that, and such awful names too! Why in the Diarch's Names would you do that?"
The poor buck, exhausted, injured, and terrified, lasted about ten seconds under Fluttershy's Stare. He spilled his guts, metaphorically speaking, everything duly recorded and fed back to Twilight and the others aboard the Enduring Harmony.
"Um, now what?" He watched the mare apparently speak to thin air, then noticed a dark... thing... that was apparently stuck in her ear. "Oh, I see. Okay then."
The eyes focussed on him.
"Now, normally, um, I wouldn't do this," Fluttershy confessed, "but I hate being armoured up. It makes my wings hurt. And then I'm usually fighting abominations. Or standing around for hours at ceremonies. So I'm kind of... upset. You understand? You attacked our herdmates, so we had to armour up, and now I've had to chase you all this distance, and we find out our world has gone to Cacaphony."
The buck could only nod.
Then he couldn't, because Fluttershy brought her free hand around and tore his head off.
The normally gentle pegasus let the profusely bleeding corpse drop to the ground and clamped her helmet back on - no need to be complacent. Besides, she thought to herself, the scouts were probably disposable.
"I bet there'll be a decent fight when they send a follow-up," Rainbow Dash said over the comm.
"You're probably right," Fluttershy admitted, "I'm returning now. I need a fly, preferably within our guns' range."
Later, Fluttershy stretched her wings out again and regarded her herdmates.
Cacaphony had altered Equestria; the creature proving far worse than Discord and completely irredeemable. To battle Cacaphony's spawn, followers, dupes, and eventually the horror itself, the Equestrians had been forced to advance technologically. That had changed the balance of power, and the Equestrians themselves.
"That cacky geas is driving me insane," one of the pilots complained, "I keep thinking I should rape you all as is my right as a male."
"You're saying that in front of Flutters," one of his female comrades snickered, "she'll probably get ideas next time she sees Mac."
Applejack just looked steadily at the loudmouth while Fluttershy blushed and everyone else laughed. It didn't last.
"Truth be told, it's driving me crazy too," the mare went on, "like all I wanna do is fall to my knees and be a slave."
Silence. Even in the shielded ship, whatever geas this... king Dainn... had erected could still be felt. The Elements all looked at each other, then grasped hands, funnelling magic into each other before pushing it out.
"Woah!" the colt gasped, "Thank you so much guys. I can think with my head now!"
"Good," Twilight said, "because this Equestria is ripe for Cacaphony to take. And if it finds that geas, and its maker, pleasing to it..." she shuddered.
"Has the Cack been here though?" Applejack asked reasonably, "Somehow I don't think so."
"Yet," Pinkie's mane was beginning to fluff out again. "So that means
...that's quite enough of that. Yes, Discord had an evil twin in this AU, and the Elements are hunting it down across the multiverse. In this idea, Dainn would be one of the casualties (well, what else are you going to call one of Cacaphony's dupes?) And yes, 'cack' is a curse word here.