Legendary is a deck-building game set in the Marvel Comics universe. To set up the game, players choose a number of hero decks from the likes of Spider-man, Hulk, Cyclops, or Wolverine, to name a few. Shuffle them together (since players use only a handful of hero decks out of the fifteen included) allowing the hero deck to vary widely in terms of what's available. Players then choose a mastermind villain (Magneto, Loki, Dr. Doom, etc.) and stack that particular villain's attack cards underneath it.

The Second Edition revises the original core set with updated art and mechanics for a new, updated experience.