D1

D1 is an unlockable activated item added in The Binding of Isaac: Afterbirth †.

Effect

 * Duplicates 1 random pickup in the current room, including cards, runes, chests, and trinkets.

Trivia

 * D1 is the only dice item that doesn't re-roll anything.
 * As an exception,, although it technically does re-roll items, has a controlled and consistent result.
 * As such, its description, in certain cases, can be ironic, as the outcome is entirely predictable if there's only one pickup. This makes sense because the dice only has one pip on each of its 6 sides.


 * D1 is the only standard dice item that doesn't have the respective number of sides as outcomes, but rather, just a D6 with all sides having singular pips. Rather, an actual D1 would be more accurately pictured as a Mobius strip or a sphere.

Seeds
34HF 9E4F (Treasure Room adjacent to spawn)