Jacob's Ladder is a passive item added in The Binding of Isaac: Afterbirth †.


  • Dlc nr indicator.png Tears fire 1-2 sparks of electricity in random directions upon hitting an obstacle or enemy.
  • Dlc r indicator.png Tears fire 1 short-ranged spark of electricity in a random direction upon hitting an obstacle or enemy. When an arc strikes an enemy, it will strike another nearby enemy, chaining up to four times.
  • Sparks deal half of the tear's damage (Isaac's current damage stat).
    • Sparks behave like spectral homing lasers and will arc to hit enemies that are close enough, even striking multiple ones in a row.
    • Tears that hit the floor due to running out of range do not generate arcs.
    • Dlc r indicator.png If the floor is wet, such as Stage Downpour icon.png Downpour, Stage Dross icon.png Dross, Stage Flooded Caves icon.png Flooded Caves, some rooms in Stage Scarred Womb icon.png Scarred Womb and after using Collectible Flush! icon.png Flush!, the arcing distance is increased.


  • All status causing tear effects: The status effects will be applied over the electric arcs as well. The poison caused by Collectible Serpent's Kiss icon.png Serpent's Kiss will not drop black hearts.
    • Dlc r indicator.png Collectible Euthanasia icon.png Euthanasia: Electric arcs coming off of needle shots act also act as needle shots themselves, allowing entire rooms to be killed instantly.
    • Collectible Sinus Infection icon.png Sinus Infection/ Trinket Nose Goblin icon.png Nose Goblin: A booger tear that strikes an enemy will also apply a booger to each enemy that gets hit by an electric arc.
  • Collectible Angelic Prism icon.png Angelic Prism: All of the split tears will be electrified. Also, electric arcs that pass through the prism will be split.
  • Dlc r indicator.png Collectible Brimstone icon.png Brimstone/ Character Azazel icon.png Azazel: The beam gains a light blue tint and generates sparks.
  • Collectible Lost Contact icon.png Lost Contact: Tears block enemy shots as normal and will then generate arcs of electricity where the shot was blocked.
  • Collectible A Lump of Coal icon.png A Lump of Coal: Sparks deal damage based the tear's, increasing with distance. No extra damage is applied by the distance covered by the spark.
  • Dlc r indicator.png Collectible Mom's Knife icon.png Mom's Knife: The knife will occasionally generate sparks when hitting an enemy.
  • Spectral tears: The tears can spawn sparks while passing through obstacles.
  • Dlc r indicator.png Collectible Tech X icon.png Tech X / Collectible Tech.5 icon.png Tech.5 / Collectible Technology icon.png Technology / Collectible Technology 2 icon.png Technology 2: Lasers gain a light blue tint and generate sparks.


In-game Footage


  • This item refers to high voltage traveling arcs, which are colloquially known as Jacob's ladders. It creates a small electric arc rising between two metal rods, as the item graphic represents.
    • The name is a reference to The Book of Genesis from the Old Testament. In Genesis 28:10-19 Jacob rests on his journey and has a dream; in the dream, he sees a ladder that serves as the connection between Heaven and Earth.
  • Dlc r indicator.png This item's new effect closely resembles Collectible 120 Volt icon.png 120 Volt from Antibirth, which was added to the game with a different effect.
  • Dlc r indicator.png Collectible The Stairway icon.png The Stairway was originally named Jacob's Ladder in Antibirth. It was renamed when being ported to avoid a naming conflict.


PC Dlc r indicator.png 9ZXL TW0W (Treasure room adjacent to spawn)

Switch BothIndicator.png RB16 V4HQ (First floor Treasure Room)


Collectible Undefined icon.png Bug! Dlc nr indicator.png When using The Forgotten's melee attack with both Jacob's Ladder and Haemolacria, the sparks caused by splattered tears will hurt the player. This does not apply to other tear scattering items.

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