Veil - caraminden/anathema-roguelike GitHub Wiki

Veil shields your character's Arcane Resonance from Detection by your enemies. A character's Arcane Resonance must first overcome a character's Veil before it becomes perceptible. Veil is found mostly on Armor, but characters also gain a bit of Veil from Leveling.

Characters who don't cast Spells or make extensive use of Elixirs will only need enough Veil to effectively hide the Arcane Resonance generated by the items they wear, while characters who do use those kinds of Abilities will probably want to get as much Veil as they can so they can use as many of those Abilities as possible while remaining hidden.

If a character has built up 75 points of Arcane Resonance and has 50 Veil, the amount of Arcane Resonance which will actually be projected is only 25.