Binding of Isaac: Rebirth Wiki

Blank Card is an unlockable activated item.



  • Using the Blank Card does not expend the consumable.
  • Pills can be mimicked only by Added in AfterbirthPlacebo Placebo.
  • Added in Repentance Runes and soul stones can be mimicked only by Clear Rune Clear Rune.
  • Using the Blank Card with a consumable that is not compatible, or no consumable at all, will spend the charge with no effect.

Added in Repentance Recharge Time[]

Blank Card's recharge time changes upon use, depending on the card Isaac was holding when he used it (except in the case of using the item with no held card). This is a list of the following recharge times the card can have:

Single use:
  • ? Card ? Card
    •  ? Card has a unique interaction with Blank Card, noted in the synergies section.


  • Added in RepentanceButter! Butter!: Because Blank Card is dropped upon usage, the recharge time for it is reset to 4, allowing to use more expensive cards much more frequently.
  • Added in RepentanceBook of Virtues Book of Virtues: Spawns wisps in the center ring, looking like cards. The wisps spawn Cards when destroyed, and enemies killed by the wisps' tears have a 15% chance to drop a Card. The effect of the wisps and the types of cards they spawn are independent from Blank Card's charge time and the most recently used card.
  • Added in AfterbirthCar Battery Car Battery/Added in Afterbirth † / Removed in RepentanceTarot Cloth Tarot Cloth: Essentially uses the card twice. If used with the Two of Hearts/Diamonds/etc. cards it will quadruple whatever amount Isaac has.
    • Car Battery + Tarot Cloth: The card is used 4 times at once.
  • Added in Afterbirth / Removed in Repentance 2 of Diamonds 2 of Diamonds + Restock Restock or in Greed mode: Coins can be infinitely generated by buying Lil' Battery Lil' Batteries. As Lil' Batteries only cost 5 coins, as long as Isaac starts with at least 11, the maximum of 99 coins can be quickly reached.
    • Added in Repentance This cannot be repeated infinitely, as Restock now increases the price of a shop slot every time something is purchased from it. Having 12 coins will very slowly allow Isaac to obtain 99 coins, however.
      • This does not apply in greed mode.
      • Having Deep Pockets Deep Pockets allows this to once again be repeated infinitely, as the price will cap at 999 coins.
  • Added in Afterbirth? Card ? Card: Teleports Isaac to the I AM ERROR I AM ERROR room. This will consume both the Blank Card and the ? Card.
    • An exception is when they are used on Chest Chest, Dark Room Dark Room, or Ultra Greed Ultra Greed floors. Using them here consumes both the Blank Card and the ? Card and spawns an I AM ERROR Shopkeeper Shopkeeper.
      • Added in Repentance Likewise occurs on Home Home floors.
  • Removed in Repentance Rune of Jera Rune of Jera: Allows Isaac to copy pickups with every use. This combination can double Lil' Battery Lil' Batteries, which can allow for game-breaking combos, due to repeated use of the synergy.
    • Spawning too many items will cause objects to despawn. This can even despawn the End Chest after finishing a final boss fight.


  • Little Baggy Little Baggy: All cards are replaced by pills, rendering Blank Card useless, unless Isaac also has Starter Deck Starter Deck.
  • Added in RepentanceWild Card Wild Card: Does nothing if used through Blank Card. Wild Card can, however, copy the last card that was used through Blank Card.

In-game Footage[]

Unlockable Achievements[]



PC Hard mode only K9B6 DYHA (Treasure Room Treasure Room adjacent to spawn)

PC Normal mode only 3C6Z 880R (Within Shop Shop)

PC Hard mode only E8XS 8371 (Within the Shop Shop, along with Rune of Jera Rune of Jera inside the Curse Room Curse Room, all in first floor)

PS4 GRCJ PCSP (Treasure Room Treasure Room adjacent to spawn)

Vita 9B2E 2XBZ (Treasure Room Treasure Room adjacent to spawn)

Switch Hard mode only NHAW AKAD (Room south of the first floor's Boss Room Boss Room; requires flight)