You were just passing through the countryside when you noticed something was off. The air grew colder, and a strange mist rolled in as the sun dipped below the horizon. As you trotted toward Ponyville, you saw ponies unlike any you’ve ever seen—clad in eerie costumes, yet somehow… these weren’t costumes at all. They were the ponies.

Up ahead, you spot Twilight Sparkle, but she’s different. Dressed in a flowing, tattered robe, her horn glowing a deep violet, she notices you and approaches. "Welcome to Costumare," she says with a smile, her voice filled with both warmth and mystery. You see her friends—Applejack, now a forest witch, Rainbow Dash, a vampire hunter, and the rest of the Mane Six, each transformed.