If you can't use Thundurus, you can consider Mega-Manectric, Ampharos, Electivire or Heliolisk for offensive and swap out Gengar for a prankster or status user thats reliable like Meowstic, Liepard or Whimsicott. Try to also get some type coverage in Fighting attacks because the team you have and the one I suggested seems to lack that
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