The Jar

The Jar is an activated item.

Effect

 * Isaac can store up to 4 extra red hearts in the jar if there are no remaining empty Heart Containers.
 * When used, all hearts in the jar are dropped on the floor, rather than directly consuming them.

Synergies

 * Maggy's Bow - One full heart pickup will fill the jar for two hearts, effectively granting renewable red hearts that can be used with the D20 or transformed into special hearts with secret rooms/Dark Bum.
 * Broken Remote - Allows for teleportation with no recharge, however drops the contained red hearts in the room it was used.
 * Humbling Bundle - Allows for replicating hearts. Using the jar with 4 hearts inside it will cause 8 to drop, allowing you to create an infinite amount of red hearts.

Trivia

 * The Jar's icon is white-tinted in Afterbirth.