Unearth has been working for me; digging out a young pyromancer or mentor (a 5th pyromancer, really) or recycling Kambal vs spell heavy decks can be very frustrating for your opponent. Cycling doesn't hurt the card at all. I like Mentor a lot, but need more ways to pitch him and get him back.
This deck needs Faithless looting 5-8 it feels like. The Bedlam revelers help.