My Little Pony: FIENDship Is Magic — IDW Publishing
Issue: #4
The untold story of what Nightmare Moon did during her time on the moon!
Creators: Bobby Curnow, Heather Breckel, Neil Uyetake, Amy Mebberson, Sara Richard, Tony Fleecs, Heather Nuhfer
Characters: Runt, Big Boy, Princess Luna, Princess Celestia