Hollow Fossil is a trinket in Fiend Folio, a mod for The Binding of Isaac.
+1.35 damage.
Crush Effect: Guarantees an Angel or Devil Deal on the current floor. Spawns a Black Heart instead of a
Soul Heart.
The following special synergies and interactions for Hollow Fossil have been documented.
Mod | Item | Synergy |
---|---|---|
--- | Trinket multipliers | Doubles the damage boost. |
* Note that not all possible synergies and interactions are listed here.