Personally, I would add Detect Magics to get a good combo for Ezren. Since the FAQ states that the Recharge on Detect Magic is supposed to be 4 instead of 14, you can make him one awesome Diviner.
If you've got two Auguries, you can stack spells on top of the deck consistently and then use Detect Magic to get another encounter. Since he will likely acquire a spell, you can keep exploring and getting the spells. Since you replace Augury and Detect magic in your hand by drawing new cards, you should be set up for a combat by the time you get through the spells on top.
