THE BINDING OF ISAAC: FOUR SOULS – BIG BOI BOX: Contains the enthralling new Requiem expansion for The Binding of Isaac: Four Souls and an extra-large collector's box to store all the cards. REQUIRES THE BINDING OF ISAAC: Four Souls 1st or 2nd Edition - Please note that you must own a copy of The Binding of Isaac: Four Souls 1st or 2nd Edition card game to enjoy the Requiem expansion. EXPAND YOUR GAMING EXPERIENCE: This box includes 269 new and thrilling Requiem Expansion cards for even more exciting gameplay. Join Isaac in his many forms on a journey filled with surprises, treacherous enemies, and valuable rewards ADVENTURE TO THE NEXT LEVEL: Immerse yourself in a new level of gameplay with this exciting Requiem expansion Please note that this product only includes the expansion cards and rebalance cards and requires the base game for full enjoyment.