Clerical Work: Specialty Priests of Iyachtu Xvim for D&D 5th Edition

I'm importing the idea of Specialty Priests and channeling a bit of DnD 4E by treating them as Feats.

Specialty Priests of Iyachtu Xvim

Authlims Feat

Prerequisite: Cleric with the Death Divine Domain

• You have necrotic resistance.

• You are immune to the fear spell.

• On your turn, you can use an action to regain hit points equal to 1d10 + your cleric level. Once you use this feature, you must finish a long rest before you can use it again.