Quick question guys. I have white 2 and would like to get Regigigas. However, I don't know anyone who has black 2 so I can't get registeel. However, I happened to remember that I have all three regis transferred from gen 3 sitting in white 1 waiting for the pokebank. Can I trade my gen 3 regis into white 2 to get regigigas? Or will some bullshit prevent regigigas from unlocking using gen 3 regis?