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▾Table of Contents▾
Onyx rock trinket
Onyx is a rock trinket in Fiend Folio: RELOADED, a mod for The Binding of Isaac.
Description
Grants a 60% chance to replace any 
Soul Heart pickup with a 
Black Heart.
Grants a 20% chance to replace any 
Heart pickup with a Soul Heart, and an 80% chance for the heart to disappear instead.
Half-heart variants are replaced with the respective half-Black/Soul heart variants. The same applies for 
Blended Hearts which can turn into 
Blended Black Hearts.
The Black Heart replacement can happen after a Red Heart has been converted into a Soul Heart.
Special synergies
The following special synergies and interactions for Onyx have been documented.
| Mod | Item | Synergy |
|---|---|---|
| --- | Trinket multipliers | +20% and +10% chance, respectivelly. |
* Note that not all possible synergies and interactions are listed here.
External links
- Check out the trinket description on the mod's external Wiki.
- Download Fiend Folio: RELOADED from the Steam Workshop.
Fulgurite 
Furnace Rock 
Malachite 
Fish Rock 
Hellvite 
Booster Rock