Scrounge nobody's favorite
As a being who embodies the power of love, Princess Cadance can serve as a power battery for those with a Star Sapphire ring. Having Shining Armor with her only increases this capacity.
More surprising is that Fluttershy, a seemingly normal pegasus who embodies the element of Kindness, can recharge Sinestro Corps rings, of all things, due to her being able to both experience and inspire deep fear.
"
[@YetAnotherBrony":](/pony/crazy-headcanons/post/1752775#post_1752775
)
I'd imagine that any priests who claims to speak for Celestia or Luna find themselves in a great deal of legal trouble very quickly.