THIS IS A BUNDLE! My Little Pony: Friendship is Magic Mane Six in their dark forms after being transformed by the Rainbow of Darkness. Any true Brony or Pegasister will know exactly what the Rainbow of Darkness is, but for those who do not know, it is the source of magic that the original Tirek from My Little Pony G1 used to transform the ponies he captured into dragons to pull his chariot. The G4 Tirek stole power from the ponies and when he did their cutie mark's disappeared and so these skins do not have cutie marks.