Coupon

Coupon is an unlockable activated item added in The Binding of Isaac: Afterbirth †.

Effects

 * If Isaac is in a Shop, Devil room, or Black Market, upon use, makes a random item free.
 * While held, guarantees a random item or pickup from the Shop to be half price.

Synergies

 * : Makes two items free upon use.

Trivia

 * Coupon has been added in Booster Pack, after the initial release of the "Afterbirth +" DLC.
 * Coupon is based on this Steam Workshop item by Plumbus, originally known as Cereal Cutout.