That's how I've gone through it except I unlocked the treasure hunts. Priests are more useful after level 4 with the new cards, curse of fragility is way more useful than bad medicine. After level 6 they do come into their own more. Priests seem to have more of an interaction than they did when I played the first time around. Self targeting frenzy also means even with less attack cards than warrior and wizard they can make useful attacks more than they did before. I still think some players may wish they had another warrior instead of a priest for the first few levels but it doesn't take long to see their worth.