Clerical Work: Specialty Priest of Mystra for D&D 5th Edition

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

Specialty Priests of Mystra

Dweomerkeeper Feat

Prerequisite: Cleric with Knowledge Domain

• You have advantage on Intelligence (Arcana) skill checks.

• You have a +1 bonus to saving throws against any sort of magic.

• You may cast both the detect magic spell and the dispel magic spell once per day.

• Your magic functions normally in both dead magic and wild magic zones.