Lemegeton is an unlockable active item in The Binding of Isaac, added in the Repentance DLC.

Grants an orbital wisp that takes the form of a random passive item.

The summoned item will act as if Isaac owns it, but is active only while the wisp is alive.

The item has a 25% chance to be chosen from the current room's item pool, otherwise a random pool is selected.

Only items with the summonable tag can be generated.

The wisps can block up to 4 shots and/or get hit by 2 explosions before destroyed.

Wisps deals contact damage equal to 2x Isaac's damage per tick, 2 times per second. They also receive contact damage.

A total of 24 wisps can be created. Using the item when this limit is reached will replace the oldest wisp.

Item wisps do not exhaust item pools, meaning Isaac can still normally find these items in a run, and multiple of the same item wisp can be obtained.

Wisps do not contribute towards transformations, or the Collection Page.

Items that would normally grant pickups or health, will not do so when summoned as wisps.

This page shows the latest information as of the new Repentance+ (Online Co-op) DLC.
To see information about this item for the previous Repentance version, check this page instead.

Defeat Delirium as Tainted Bethany.

This item contributes towards the Bookworm transformation. Collecting 3 items from this set will make Isaac fire an extra tear 25% of the time.

Lemegeton can be found in the following item pools:

The following tags are applied to this item:

The following special synergies and interactions for Lemegeton have been documented.

* Note that not all possible synergies and interactions are listed here.

Below is the Internal Item Description as shown in-game.
Note that some stat changes are not displayed here. Please see the main description for the full effects.

Lemegeton

• Grants an orbital wisp that resembles a random passive item. While the wisp is alive Isaac has that item's passive effects
• Wisps deal contact damage to enemies but take damage. When one is destroyed, its passive item effects are lost
• Abyss: x1 locust 1.5x Isaac's damage
• Book of Virtues: x1 item wisp - 4 hp
• Book of Virtues: Item's wisps shoot homing tears

• Check out the item description on the external Isaac Wiki.