Urn of Souls

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

Effects

 * Killing enemies grants a soul charge to the Urn, up to a maximum of 20. Killing bosses grants a larger boost. Charges must be used to power Urn of Souls.
 * Each charge is equivalent to 15 flames over half a second.
 * On use, emits a stream of blue flames in whichever direction Isaac is facing. Each flame deals 1.5 - 2.1 damage per tick, depending on how far it's traveled, for 22.5-31.5 damage per second. Multiple flames can damage the same enemy simultaneously.
 * Isaac is also pushed backwards slightly while using it.
 * Can be fired diagonally.
 * The fire destroys enemy projectiles, poop, and other fires, but bounces off rocks.

Synergies

 * Flames can be split into four multi-colored flames.
 * /: The urn can emit flames from these items. Ghost Pepper flames are indistinguishable from Urn of Souls flames, but persist on the ground for longer.
 * Each individual flame has a chance to spawn an orbiting tear.
 * Every 15 flames shot out of the urn will shoot a barrage of Isaac's tears.

Trivia

 * This item is used in Baptism by Fire (challenge #38).