I've replaced Expired Merchant with Gnomeferatu, because I don't think I will need the value of the Merchant that often. Replaced Eater of Secrets with Kezan Mystic as I think it suits the meta better at the moment. And replaced Youthful Brewmaster with Zola the Gorgon. That 1 mana more can sometimes be a disadvantage, but generally speaking Zola is the better card.
Krul the Unshackled hasn't felt awkward yet, but I have only played 4 games with this deck. Won 3. I really like it so thanks for sharing!