Heal, heal, heal... BOOM! Stabilize the board with walls and heals and eventually start reversing your healing blessings with Xenan Fanatic. Currently playing this in the top 300 masters with a 50% winrate.
7/16 Edit: Dropped one Excavate and added 1 Hatecleaver to the mainboard, as it can become another win condition and can combo off with Camel and Priest leading to some massive board control, armor and damage.
Honestly, the main fault with the deck comes from the opening hands. I'd say 70% of opening hands are really good while the other 30% is all draw and no walls or benefits from drawing. It happens to everyone. Glad you've liked it so far though!
Instigator is also pretty good for getting early damage in. Yes, you sacrificed some healing triggers for it, but some match ups I can definitely see it helping depending on the meta.