Cain's Other Eye

Not to be confused with Evil Eye.

Cain's Other Eye is an unlockable passive item.

Effects

 * Spawns a familiar that floats slowly around the room in a zig-zag pattern similar to The Peeper and shoots normal tears in the same direction as Isaac. Each tear deals 3.5 damage.
 * Each tear scales with Isaac's damage. (The mechanic relating to this is thought to be introduced in the latest patch and not fully understood.)

Seeds
ZWY4 PYQL (Treasure room next to spawn) P2ZC JTS6 (Treasure room adjacent to spawn) LBFS (Down and left from spawn)

Cain's Other Eye