Fiend Folio: ReheatedFiend's Horn"There's a bit of him in all of us"Passive item
Grants a chance to spawn a Hollow Friend each time an enemy dies. The friends disappear on room clear and do not produce any hearts.

The chance to spawn a Hollow Friend scales with luck and the amount of immoral hearts Isaac has, using the formula: 0.2 + 0.15 × max(14, LuckStat) + 0.025 × ImmoralHearts.
Unlock: Defeat Delirium as Fiend.
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Unlockable Grants costume Has YouTube video Animated icon Favorite (?)

Note that this page shows the previous Fiend Folio version before the RELOADED update.

To access the latest update and new items, please check the Fiend Folio: RELOADED page.


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Download the Fiend Folio: Reheated mod for The Binding of Isaac