Combo potential in innerfire priest. It;s an interesting way to cycle with wild pyromancer and acolyte.
Will it be good? It really depends how this deck will function. Dunno, what's better - a 3/3 body (the demon) or a cheap spell, which has synergies with your cycling cards, but also negative ones with shadow visions?
Also why it is so good: because it isn't affected by Skulking Geist. One of the biggest weaknesses of Divine spirit-priest was always Skulking Geist, because Inner Fire was always destroyed from it. This is an alternative to make the deck less bad against any deck with Skulking Geist.