Item: Key Piece 2
Isaac leaves a trail of black powder on the floor. Walking in a circle will spawn a pentagram symbol on the floor, which deals 10 damage per tick to any enemies inside it.
Grants Isaac one red heart container and fully restores Isaac's health.
Increases speed by 0.3 and shot speed by 20%.
When hit, summons a white attack fly similar to Distant Admiration for the current room.
The Small Rock
Increases damage by 1, increases tears by 0.2, and decreases speed by 0.1.
Grants -1 Tear Delay and reduces Range. When tears hit an object or deplete their range, they spawn 4 smaller tears, whose Range and Damage scale with Isaac's.
When hit, spawns up to 2 blue spiders.
Adds a chance to fire an egg sack which spawns slowing creep and spawns a blue fly or spider upon hitting an enemy.
Spawns a bone familiar that can be aimed with the fire buttons and does contact damage.
Gives a random chance for projectiles to fire in all 4 cardinal directions.
???'s Only Friend
Summons a big attack fly that can be controlled with the shooting direction-keys.
Converts all bad pills into good pills, spawns one pill pickup and restores health. Identifies all pills upon pickup.
While firing tears, Isaac has a chance to fire an eye across the screen with a very slow shot speed, which will fire tears of its own in the same direction as Isaac. The eye will be destroyed if it comes into contact with an enemy or obstacle.
Spawns a familiar that flies around the room in a manner similar to the Boom Fly and explodes on contact with an enemy. Respawns after ten seconds.
Automatically negates first taken damage in every room.
Tears are replaced with laser rings that pierce through enemies and deal damage to enemies within them. Can be charged to increase the size of the ring.