It almost isn't worth playing as I know exactly when I am going to lose every time, over and over.
When you travel to the Hallowed Circle at the end, each guardian attacks, then the combat phase is next. You have to defend 6 boss level attacks in a row. Then if you don't manage to quest through on the next turn (which requires a minimum of 12), you immediately have to defend 3 more boss attacks.
I'm just skipping over this one for now, maybe I'll look up a custom built deck later.