This is an expansion box. A copy of Unstable Unicorns is required to play.
Nightmares Expansion Pack: Don't be a Halloweenie! This 54 card expansion pack is dripping with your favorite horror tropes and spooks (and of course, lots of unicorns!). This pack includes new Character cards, Magic cards, Upgrade cards, and Nightmare Downgrade cards. So don't go into that creepy house...or do...we can't tell you what to do. But Stabby the Unicorn might be waiting!