Keystone is a trinket in Fiend Folio, a mod for The Binding of Isaac.
On pickupSpawns a Key.
While heldGrants the following stat boosts for every key used on the floor:
+0.1 speed.
+0.09 tears.
The stat increases last only for the current floor.
The following special synergies and interactions for Keystone have been documented.
Mod | Item | Synergy |
---|---|---|
--- | Trinket multipliers | Doubles the stat boost. |
* Note that not all possible synergies and interactions are listed here.