Your deck size isn't too bad, considering the 3 sundials. What really needs work is your quantum usage- its too umbalanced with all that fire. Those RoFs are too expensive for your rainbow. Try alternative CC options, if you must- your CC is sufficient without the RoFs. I'd replace them with either a Sanctuary or sundials- while you don't need extra stall, it would add more protection for your early game and allow you more time to set up your elf/boneyard/CC combo.