Third Morbid Heart is an unlockable pickup in Fiend Folio, a mod for The Binding of Isaac.

Adds 1/3rd of a Morbid Heart.

Morbid Hearts are placed on top of existing Red Heart containers, making them able to sustain up to 3 instances of damage before depleting.

Partially depleted Morbid Hearts can be refilled with Red Hearts, Rotten Hearts, or other Morbid Hearts.

When depleted, Morbid Hearts spawn a Morbid Chunk orbital that deals 7 damage per tick to enemies, and gets destroyed after dealing 30 instances of contact damage, or blocking 3 projectiles.

Cannot be picked up by characters that cannot have red health.

Kill Mr. Dead.

• Check out the pickup description on the mod's external Wiki.
• Download Fiend Folio from the Steam Workshop.