Breakfast Fossil is a trinket in Fiend Folio, a mod for The Binding of Isaac.

No effect.

Crush Effect: +1 full Red Heart container.

Can only appear once the rock trinket pool is depleted.

The following special synergies and interactions for Breakfast Fossil have been documented.

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

• Check out the trinket description on the mod's external Wiki.
• Download Fiend Folio from the Steam Workshop.