>>30801132I am stuck in Gen IV too, mine doesn't have the National Ribbon because no Shadow Feebas or Milotic.
I just need to beat Doubles, Multi with AI and Multi with another DS in the Battle Tower. Also the impossible one for Wi-fi Battle Tower, but impossible things are impossible.
I am honestly kind of considering giving up and moving it forward, I did 49 wins in Singles already.
I also beat every Pokeathlon thing with my Milotic, but no Ribbon for that.