A parody of the Friendship is Magic series.

Twilight Sparkle is the messenger angel pawn of the ruling Goddess, an all powerful deity who controls the entire world. Nothing makes her more excited than when she's finally sent by the Goddess to tell the world of the coming day of reckoning! Arriving in Ponyville, she and her demon slave Spike meet five of the residents; Apple Jack, Death incarnate, Fluttershy, the quiet succubus, Rarity, an egomaniac demigoddess, Pinkie Pie, a hyper baker who sold her soul for supernatural powers, and Rainbow Dash, an obnoxious racehorse obsessed with angels and conspiracy theories. This would be all fine and dandy, really, if they weren't dead set on stopping the end of the world-and dragging Twilight along with them.

I'll add a cover after I can get myself or someone else to make them for me!