Store Credit

Store Credit is an unlockable trinket.

Effects

While holding the trinket, all items in the Shop are free.
- After purchasing anything there, the trinket disappears.
- This trinket only works on monetary transactions within the Shop.

Golden Trinket: Does not disappear on use. Purchasing an item has a 25% chance to turn into a regular store credit trinket and 75% to remain golden.

Keeper's Box: Cannot be used on items/pickups spawned outside of the Shop.
The Stairway: Cannot be used on the items/pickups found in the special Angel room.
Marbles / Smelter / Gulp! pills: Store Credit's effect will only happen once after being absorbed.
A Pound of Flesh: Store Credit becomes a useless trinket, as neither Devil Deals nor shop items will become free.

Bug!	Buying a trinket (which is possible only in Greed Mode, as trinkets are not sold otherwise) while holding Store Credit will drop Store Credit without consuming it while still taking the trinket for free.