I might think that would work great for a Priest/Hero actually.
Give the hero priests something else interesting in their gameplay.
While also not requiring that the devs add an entirely new subclass to the game.
I can think of one priest who would probably jump all over that if it became a reality.
Yeah, yeah...I know. A case of trying a new subclass to see how it works. But I have to say, as long as she's been around, it would fit certain roleplaying aspects of her character as well.
Hehehe