After his death at the hands of Archangel Michael during the battle of the Apocalypse, Lucifer Morningstar finds himself not quite dead after all. In fact, he's quite alive. Unfortunately, he's a pastel pony in a world of happy, harmony loving pastel ponies. How did Lucifer get to Equestria? Did God punish him for his acts of evil against humanity? Or was it his Aunt, the Lady of Darkness? Either way, Satan is definitely not in Kansas anymore.
Crossover with Supernatural and the Bible. You don't need to have watched Supernatural or read the Bible to understand this. You do need to know who Lucifer/Satan/the Devil is, however. Otherwise, this won't make sense to you! This is NOT Human In Equestria. It's Angel In Equestria...who is turned into a pony. So that's why there's no human tag. Luci is NOT human.