DC DECK-BUILDING GAME: CROSSOVER COLLECTION 1 board game experience in which you don the cape and cowl and journey Upgrade your DC Deck-Building Game Experience! Crossover Collection 1 brings together three classic Crossover Packs in one amazing package. Each expansion lets you play as new Super Heroes or Super-Villains, adds new game cards, and introduces innovative mechanics to any base game in the DC Deck-Building Game series.