Finger!

Finger! is a passive item added in The Binding of Isaac: Afterbirth †.

Effect

 * Spawns a floating finger familiar that can be aimed with the fire buttons in all directions.
 * The finger fires invisible spectral lasers, doing 10% of Isaac's normal damage. The lasers fire continuously.
 * While not being aimed with the fire buttons, the finger points in the direction of movement or downwards if standing still.

Synergies

 * : Adds another finger on top of the previous one, so it's hard to notice.
 * Guppy: Flies are generated from the damage the finger does.
 * : The finger gains massive damage boost and can poison enemies.
 * Almost doubles finger's damage. Has no damage penalty with range.
 * Triples finger's damage. Has no penalty with range.
 * All Status Effect items: The Finger will apply the tears' status effects to enemies.
 * /: The finger has a chance to destroy rocks when pointing at them.

Interactions

 * : Increases finger's size, however, does not increase finger's damage.
 * : Only increases damage.
 * Homing tears: The finger laser does not become homing.
 * : No effect on the finger's damage.
 * : While actively aiming, the finger behaves as normal and while fire keys are not pressed, it points towards the targeting crosshair.
 * : When not firing, the finger will point towards the nearest cardinal direction as to where the shield is left. This favors the vertical directions when the shield is at a 45° angle.
 * : No effect on finger's damage.

Trivia

 * This item is a reference to Fingered!, one of Edmund's games.