Dusky Flag is a consumable in Glacier's Laboratory, a mod for The Binding of Isaac.

Activates the effects of Starry Cellphone.

Holding the button that uses the card will instead set it up as a trap.

When the trap is triggered, the nearest non-boss enemy becomes a random champion, then closes all doors and spawns in extra enemies.

Triggering the trap spawns 1-3 random chests on next room clear.

Cannot be set up as trap if mimicked.

The following special synergies and interactions for Dusky Flag have been documented.

* Note that not all possible synergies and interactions are listed here.

• Download Glacier's Laboratory from the Steam Workshop.