A Pound of Flesh

A Pound of Flesh is a passive item added in The Binding of Isaac: Repentance.

Effects

 * Devil Deals and Black Market items can now be paid with coins.
 * Anything that generates Devil Deals (such as or the special chests in ) will also create items that cost coins.
 * Items in shops now cost health.
 * Consumables in shops have no cost, but are surrounded with spikes and can't be pushed out with an explosion.

Interactions

 * Flat File: No effect. Spikes generated surrounding consumables will not be removed.
 * / : The item is not available to these characters normally. If acquired through,  or such, it has no effect.
 * : Items and pickups generated outside Devil Rooms will cost health, but items generated inside Devil Rooms will cost coins.
 * : Because shop items no longer cost coins, stat bonuses are no longer gained from buying shop items.
 * : Only one item can be picked up from each shop; any other items will vanish. Consumables can be taken for free.
 * However, multiple items can be bought from Devil Deals.
 * With, the Lost can buy items indefinitely.
 * : Devil Deals will have their price reduced. Shop items will cost the same amount of health.

Trivia

 * The name of this item is a reference to Shakespeare’s play The Merchant of Venice, where the Jewish moneylender Shylock asks the bankrupt Antonio for 'a pound of flesh' in payment for his debt.
 * The name of this item matches the description of the, which also references the play.