Backstabber

Backstabber is a passive item added in Afterbirth †.

Effects

 * When tears land on the "back" of enemies, they deal double damage and inflict bleeding.
 * Bleeding enemies take damage equal to 10% of their maximum health every 5 seconds.

Synergies

 * Brimstone - Can still inflict bleeding, as long as Isaac is "behind" the enemy.
 * Daddy Long Legs - Daddy Long Legs can occasionally gain the added damage and bleeding of Backstabber.

In-game Footage
Backstabber