What does the Blank Voucher do in Balatro?

Customizing your deck and exploring the in-game store is essential for beating a Balatro playthrough. The poker roguelite offers everything from Tarot Card Packs to a myriad of fiendish Jokers, each with unique perks that can help you hit the final Ante.

Often overlooked but incredibly effective when used correctly, Vouchers can be picked up between rounds at the store alongside Booster Packs and Jokers. One of the most elusive and, frankly, confusing items in the game is the Blank Voucher.