Try this "MONO ICE" team in ou sometime.Got top 20(2020 elo) with it in ou ladder.
https://pokepast.es/defb5e44c97a735f
Proof:
https://replay.pokemonshowdown.com/gen8ou-1233787057-k6c8p5zoudlm34ct2laj93j8uz91htvpw
https://pokepast.es/defb5e44c97a735f
Proof:
https://replay.pokemonshowdown.com/gen8ou-1233787057-k6c8p5zoudlm34ct2laj93j8uz91htvpw