Used Diaper

Used Diaper is a trinket added in The Binding of Isaac: Afterbirth † expansion.

Effects

 * Gives the Skatole effect only in certain rooms; this chance is based on the room itself and re-entering rooms does not affect whether the effect triggers or not.
 * Attack, Dart and Ring Flies become Black Flies.
 * Pooters and Fat Flies do not shoot.
 * Boom Flies move slower.
 * Dropping the trinket will not revert black flies, but will undo the other benefits.