My Little Pony: Friendship Is Magic — IDW Publishing
Issue: #9
An enigmatic new foe brings together some of the most villainous characters in Equestria to attack the Crystal Empire in "Siege of the Cystal Empire!" Collects issues #34–37.
Creators: Mary Bellamy, Jeremy Whitley, Andy Price
Characters: King Sombra, Maud Pie, Radiant Hope, The Observer, Lightning Dust, Rainbow Dash, Princess Luna, Applejack, Twilight Sparkle, Princess Cadance, Fluttershy, Flim, Shining Armor, Pinkie Pie, Rarity, Queen Chrysalis, Iron Will, Princess Celestia, Flam, Spike