Clerical Work: Specialty Priests of Azuth 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 Azuth

Magistrati Feat
Prerequisite: Cleric with Knowledge Domain

• This ability allows you to learn the prestidigitation cantrip . You can also cast each of the following spells once with this ability: comprehend languages and magic missile. You regain the ability to cast these spells when you finish a long rest.  Wisdom is your spellcasting ability for these spells, and you cast them at their lowest possible levels.