Rocket Racoon and Groot join the list of heroes with fully pre-constructed and ready-to-play player decks filled with new cards. Whether playing as these new heroes or relying on old favorites, players can test their powers against four all-new villains: Drang of the Brotherhood of Badoon, the Collector (appearing in two separate scenarios), Nebula, and Ronan the Accuser.

Each of these five scenarios offers a unique challenge that can be played independently or as part of a larger campaign.