Black Powder

Black Powder is a passive item added in The Binding of Isaac: Afterbirth.

Effect

 * Walking in a circle will spawn a pentagram symbol on the floor, which deals 10 damage per tick to enemies within it.
 * This does not affect flying enemies.

Interactions

 * Lost Cork: Although the powder trail is wider in appearance, it has no effect on how easily a valid shape is determined.

Trivia

 * The pickup quote may be a reference to the Pearl Jam song of the same name.