This is the 269-Card The Binding of Isaac: Four Souls Requiem Expansion retail version.

The Expansion Includes:

• 269 Requiem Expansion Cards
• 12 rebalance cards for your copy of The Binding of Isaac: Four Souls Base Game 1st edition.

You must own a copy of The Binding of Isaac: Four Souls 1st or 2nd Edition to play Requiem.