While in a room with enemies, spawns cracks on the ground. Walking over these cracks summons ghosts that launch themselves at enemies and explode.
"Help from beyond"
Spawns a red crack in the ground somewhere in the room while Isaac is in a room with enemies. Walking over the crack summons a ghost that homes in on the nearest enemy, exploding when it hits it. After the ghost is summoned, cracks will keep showing up in the room until it is cleared.
The ghost spends one second spawning in before it attacks.
The ghost deals twice Isaac's damage per tick, up to 3 times.