An evil deity from a far away galaxy. Six heroes destined to save their own galaxy. And a planet filled with peace and happiness. A darkness the likes of which the Mane 6 has never encountered descends upon Equestria.
Set in Shadejak's Mare Do Well stories; After many adventures as Mare Do Well, Rainbow Dash finds herself on her biggest one yet in a broken, darker version of Equestria ruled by a 'Nefarious Negamare'