Oathtaker - Patricia Reding

I read this and to my surprise I ended up really liking the story. It is YA don't get me wrong,but there is violence which leads
to some pretty dark scenes.And I really liked the characters I think especially Basha,she's kind of a badass.
The magic that is used is very clerical (that's what we would call it in D&D).The oathtaker is basically a protector and their powers
are granted to them by their deity.And each oathtaker has different powers so there's that.