Fiendfoe

Prerequisite: Any non-evil alignment, Charisma 13+

You are a practiced hunter of demons, devils, and all their unholy ilk. You gain advantage on Intelligence (Arcana), Intelligence (Investigation), and Intelligence (Religion) checks made to identify fiends and their abilities, and on checks to identify spells they cast (and at the GM’s discretion, magic items or other permanent magical effects they have created). You gain a +1 bonus on weapon damage rolls against fiends, and this bonus is increased to +1d4 if the fiend has resistance against the type of damage your weapon deals.