Legendary: A Marvel Deck Building Game is set in the Marvel Comics universe. To set up the game, players choose a mastermind villain (Magneto, Loki, Dr. Doom, etc.), stack that particular villain's attack cards underneath it, then modify the villain deck as needed based on that villain's particular scheme. Players then choose a number of hero decks – Spider-Man, Hulk, Cyclops, Wolverine, etc. – and shuffle them together; since players use only a handful of hero decks out of the fifteen included, the hero deck can vary widely in terms of what's available.