Modifier
Sinner
piety_level_0
effects hidden in the game's tooltip
Sinner is the only negative Level of Devotion. The next level is dutiful. Effects:
Sinner (modifier ID piety_level_0) is a named modifier in Crusader Kings III. It gives Personal Tenets -1. No add_…_modifier command in common/, events/ or history/ adds it. Patch 1.20.1.2, from game/common/modifiers/00_basic_modifiers.txt.
Effects
Where the game adds it
No add_…_modifier command in common/, events/ or history/ adds it.
Source: game/common/modifiers/00_basic_modifiers.txt (line 144), the English localisation (piety_level_0, piety_level_0_desc) and every add_…_modifier / remove_…_modifier in common/, events/ and history/, Crusader Kings III 1.20.1.2.