Betray Your Friends. Unicorns Are Your Friends Now. Would you trade your friends for an army...of unicorns? Unstable Unicorns invites players to do just that while playing its strategic card game "about everyone's two favorite things: Destruction and Unicorns." Over the course of 30 to 45 minutes, 2 to 8 soldiers will compete against one another to accrue a crew of Unstable Unicorns. You'll start with a Baby Unicorn card, and try to collect more Magical Unicorns with special powers to protect your own army, and destroy your friends'. The first person to assemble a complete stable of mythical beasts ready for battle wins. The base party game comes with 135 cards and a rule book.