Item: Loki's Horns

A familiar who will drop a half red heart every 2 rooms.

Spawns a familiar that fires clusters of tears. Must be charged before shooting.

A blue fly familiar follows Isaac's movements on a 3 second delay. Papa Fly will fire tears at nearby enemies.

Increases Damage by 1, and turns Isaac's tears into blood tears.

Tears bounce off walls, enemies, and environmental objects.

Adds 5 bombs. Isaac's bombs explode into 2-4 tiny bombs.

Tears leave a small, short lasting pool of creep on impact or when their range is depleted.

Gives Isaac a random tear effect every room.
Removed in Afterbirth: The effect given changes upon entering a room.
Added in Afterbirth: The effect changes every 3 seconds.

Gives an extra life. Upon death, you will respawn in the previous room with full health and lose the 1up!.

Replaces tears with a piercing laser with unlimited range.

Gives Isaac a golden censer familiar which creates a huge aura of light that slows down any enemies and enemy shots inside it.

Grants the combined effects of the Blue Map, Treasure Map, and The Compass, revealing the floor layout and all special rooms, including Secret Rooms and Super Secret Rooms.

Displays Isaac's tear damage and enemy health bars. Spawns a gray spider familiar that wanders around and inflicts a random status effect on any enemies it comes into contact with. Occasionally spawns a blue spider upon clearing a room.

Tears up, adds 1 soul heart, and decreases Isaac's size.

Adds a chance to fire an egg sack which spawns slowing creep and spawns a blue fly or spider upon hitting an enemy.

Grants Isaac one full red heart container.

Grants one bone heart and spawns three red heart pickups.

Spawns a bone familiar that circles around Isaac and reflects enemy shots.

Reduces the charge of any Activated Items by 1. Any 1 charge items instead have timed recharges.

Isaac heals 1 heart instead of taking damage from an explosive source. Adds 5 bombs.