Crystal Heart is a consumable in Glacier's Laboratory, a mod for The Binding of Isaac.
Appears as a normal Heart until picked up.
Has a 1% chance to replace Heart.
On useThrows the heart in the direction Isaac's body is facing (movement direction). The heart deals 10 + 5 x CurrentStage damage on hit, or spawns a friendly heart enemy for current room if missed.
The friendly heart enemy attracts other enemies to attack it. It spawns a random heart that disappears in 1.5 seconds on death.
Killing an enemy with the heart spawns a random heart.