I've used a similar deck that contained 6 novas 6 sundials for added defense as well as card drawing; it works reasonably well. I don't think you need those purifies, certainly not that many, anyway. The dagger is a good card but is competing with arsenic's slot. Try using sundials, a fog shield, and whatever utility cards you think might come in handy in elements you aren't using that you can pay for with 2 or 3 novas at the most. (deflagration, lightning, fog shield, etc)