On Earth-52, Green Lantern, Supermare, Mare Do Well, the Dash, the Pink Pie-Er and Wonder Mare of the Super Friends of Equestria goes to through the magical mirror and ends up in the pre-season 3 Equestria! What will the Mane Six do when they meet their superhero counterparts.
Uses Earth 52 first thought off by defender2222 in Crisis on Infinite Twilights.