Clerical Work: Specialty Priests of Eilistraee 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 Eilistraee

Sword Dancer Feat

Prerequisite: Female Cleric with the Life Divine Domain

• The magic missile spell is considered a domain spell for you.

• As a bonus action, you may enchant an edged slashing weapon you are wielding so that you have advantage on your next attack roll with it.  You may not use this ability again, until you finish a short or long rest.

• You learn Undercommon.