Solemn Vow is an unlockable trinket in Fiend Folio, a mod for The Binding of Isaac.

Shows enemy health bars and damage dealt.

Complete Boss Rush as Golem.

The following special synergies and interactions for Solemn Vow 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.