Ecclesia of the dark dragon

Hello, I have a deckbuilding question regarding branded. I am not ready to invest into Fallen of the white dragon, however, I would consider buying Ecclesia of the dark dragon. So my question is, would it be worth it to buy it, to run in a standard branded deck, or is it just to niche to use then?

Also, if it is worth to buy it, what are some lines that could consistently integrate it into a combo?