It’s odd how one pony’s decision at a critical moment, can make the world a paradise or plunge it into utter grim-darkness. How the world of Equestria became a mirror of the 40k universe.
There's a condition that normally can't affect ponies. Almost nopony has ever heard of it. But the Vein clan knows more about it than they'd like to, because clan members who appear blessed to outsiders, are actually the cursed ones