Empty Vessel

Empty Vessel is an unlockable passive item added in The Binding of Isaac: Afterbirth.

Effects

 * When Isaac has no Red Hearts:
 * Grants flight.
 * Every 40 seconds since activation or pickup, when the seconds on the timer hit 00, 20, or 40, while in a room with enemies, a shield triggers, nullifying all types of damage for 10 seconds.
 * A 10-second shield activates when Isaac is in a room with enemies and the seconds on the timer hit 00, 20, or 40 at least twice.
 * Grants 2 Black Hearts on pickup.
 * Grants 2 Black Hearts on pickup.

Synergies

 * : The empty bone hearts will trigger Empty Vessel.
 * : If the player has no Red Hearts, they can stand still and wait for the shield to activate, allowing the player to deal damage without leaving invulnerability.

Trivia

 * The changed texture of the player's body is the same as 's, but recolored.
 * "Empty vessel" is a religious term for having an open mind so God can fill it with His divine wisdom.

Seeds
6GW8 CG48 (The Basement Devil Room)