It's arguable that being able to summon it due to the Holy keyword (likely in decks where one can comfortably accumulate the required bricks), this is a card that would be easy to draw and play. One could try to argue that you'd get even more benefit from the Restoration keyword, but seeing as you've just increased your facilities, you're probably not getting the better Restoration effect anyway.
I like it, and I don't think it's imbalanced, really.
Edit: Oh, right. The main reason I wanted to post was to link to a picture of a
Pokémon as a failed attempt at humor.