Huh, pretty cool deck idea. Scrap Dragon can pop the CB's twice for extra pluses and even better field control. Two of your Scraps are beasts too so some beast support cards could work. Scraps don't need much traps. CB's don't hve a whole lot of space for traps. I like how you run at least 2 Rare Value too, for some reason people rarely use that card in any kind of CB. It's free cards xD