I agree with everything you said above on fiedish duo, hour of rev, and cavalier they are all very solid. One thing I would look at though, and this is small. I have found that I like Ignite the Future much better than light up the stage. It digs deeper and I find that I really do use that flashback ability a lot. Showdown of the Skalds is also one that has been playing well for me. Both are worth checking out for non wheel based draw.

I've been eyeing both of them since they came out, I'll have to slot them in to test them out some time to see if I like it better. They might be just better since I find I use impulsive draw when my hand is low anyway, and getting more cards if my hand is low might be worth the extra mana.