From the Publisher:

Orphaned as a teenager, Jubilation Lee survived on her own by taking up residence in her favorite shopping mall. After her mutant power to generate explosive energy manifested, she found a new home with the X-Men. Now, she uses her powers as the colorful hero, Jubilee—and she’s bursting her way into your games of Marvel Champions: The Card Game! With her unique emphasis on spending resources of different types, Jubilee is a flashy hero that can brighten up your battles. Within this Hero Pack, you will find Jubilee, her fifteen signature cards, and a full assortment of Justice cards inviting you to shine some light on the villain’s schemes. This pack also includes a bonus modular encounter set featuring the assassin (and death trap enthusiast) Arcade!

The X-Men would not be complete without the Jubilee Hero Pack! This expansion comes with a 40-card pre-built deck, giving you the chance to start playing from the moment you open the box.