Ready to add more to your DC Deck-Building Game experience? Crossover Collection 2 brings together three fan-favorite Crossover Packs that take you to the past (Justice Society of America), present (Green Arrow), and future (Legion of Super-Heroes). Each expansion lets you play as classic Super Heroes, adds new game cards, and introduces innovative mechanics to any base game in the DC Deck-Building Game series. This is not a standalone product. Requires any DC Deck-Building Game base game to play.