Lemegeton

Lemegeton is an activated item added in The Binding of Isaac: Repentance.

Effects

 * Upon use, Lemegeton will grant a random passive item from the current room's item pool as an orbital familiar.
 * These familiars can block up to 4 shots and/or get hit by 2 explosions before being destroyed. When the familiar is destroyed, the item it granted is lost.
 * If Isaac is shielded or invulnerable, his familiars are also immune to damage.
 * Familiars also deal contact damage to enemies equal to 2x Isaac's damage per tick (4x Isaac's damage per second). They do take contact damage.
 * Isaac can have up to 24 familiars: an inner counterclockwise ring of 6, a middle clockwise ring with 8, and an outer counterclockwise ring of 10.
 * Using Lemegeton while Isaac already has 24 causes the first one to be replaced.

Synergies

 * Will generate 2 orbital passives.
 * Items will be selected from random pools, even if in a specific room's pool.
 * Stat increases remain even after the ghost has been destroyed.
 * Every ghost item will be converted to a Half Soul Heart. Familiars created by Lemegeton are sacrificed normally and also spawn full Soul Hearts.
 * Using Lemegeton in a boss room after activating the Satanic Bible on that floor will pull from the devil room pool, even against bosses that don't drop items.

Trivia

 * The Lemegeton is another name for the Lesser Key of Solomon, an anonymous grimoire focused on demonology that was compiled in the 17th century.