So I think you should use
-(Any last pokemon, preferably dragon) Some good ones are, Garchomp, Dragonite, and Altaria.
If not dragon, try a flying.
Hope I helped once again
Thanks again, that's what I was sorta thinking about.
About the dragon type, do you think Salamence would do well? It's really strong. I'd get Garchonp, but it's banned from playing wirelessly, so I think either Dragonite or Salamence.