[HoneyBadger]

Ideally, in a magical world where code dances to my whim, blessings would be based on your Pretender and his/her level of Dominion, not on anything else. It's silly to say "well, my Pretender is really good at fire magic, so all my sacred troops do magical fire damage" and call that a blessing. It's not a blessing, it's the result of a spell that the magical game-fairies cast for you when you're not looking.

It's equally silly to suggest that your Pretender can be X amount good/knowledgeable of fire magic and that's why his blessings are effective, but if he becomes X+11, that doesn't do a damn thing.

Much more sensible, fun, and opening-of-the-game-to-roleplaying-and-modding, if the bless is based on the form chosen and divine power possessed by the Pretender-including obtained divine power from temples built, since that would make for some very interesting strategy.

Naturally, it would be difficult to implement.