To FlashFox: Brave Nature allows Bronzong to pretty much not have to use Iron Ball or Macho Brace in favor of Leftovers its slow Enough... Fling is a poor choice considering you can only fling the item once, if the idea was you wanted a good dark attack, Payback is the way to go, it will almost always be doing the double damage (100 Base). Earthquake Always on Bronzong, to level Magnezone and Probopass that would try to trap you using Magnet Pull. I might suggest you use Rock Slide as your last move on Bronzong, such that you can switch into Gyarados and counter reasonably. Really a preference on that last move could be any number of things, depending on what you want Bronzong to do. (Explosion, Stealth Rock, Rock Slide, Payback, are all reasonable options)