For my current group and in preparation for playing Baldur's Gate: Descent Into Avernus I had an idea that if my players' characters are 'going to hell' then their respective faiths ought to play a major role. I decided to craft a 5e supplement focused around the idea of 'Devotion' to characters' faiths, creating a mechanic to encourage roleplay from my players and reward roleplay with faith-related benefits. I curated 35 deities' Cleric & Paladin abilities from Pyromaniac Press' Faiths of the Forgotten Realms and added to that content information on each deities' alignment and roleplay behaviors that would be supported or condemned.

In this supplement, the DM first decides what deities their players' characters can pursue faith in. All 35 deities may be available from the start of the campaign, or just a select few, such as the ones associated with the campaign's starting plane/realm/city. The DM may then introduce other deities as their story progresses, in books, songs, magic item rewards, etc.

Within the DM's choice of deities, players may choose:

1. One or two deities to pursue devotion to.
2. Deities may not be a mix of both Good and Evil, but combinations of Good and Neutral or Evil and Neutral are permitted.
3. Deities may not be a mix of Lawful and Chaotic, but combinations Lawful and Neutral or Chaotic and Neutral are permitted.

Characters' increasing faith is represented by their Devotion Score and ranges from a minimum of 1 and maximum of 100. A score of 0 represents no faith at all. The characters' Devotion Score increases or decreases due to Roleplay, Prayer Skill Boons, Corruption & Conversion and Holy Artifacts. Increases in Devotion Score grant benefits at six different ranks (Initiate, Acolyte, Chaplain, Priest, Bishop, Cardinal). The Rank Benefits are: once per long-rest abilities, area-of-effect auras, extra powers and at the highest Devotion Score of 100, demi-god like transformations.

See the supplement over at GM binder and feel free to comment this post with your suggestions!

https://www.gmbinder.com/share/-LwEZjoHvkND7tkullBN