Rock from an Abyss is a trinket in Fiend Folio, a mod for The Binding of Isaac.

Upon entering a new room, there is a 20% chance to inflict 3 random enemies with the Doom effect (check Toy Piano) for 10 seconds.

The chance scales with luck and goes up to 100% with 26.67 luck.

The following special synergies and interactions for Rock from an Abyss 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.