Competative Team

Im going to use cartridge and showdown, and the only Pokemon I want to use for sure is Shuckle, but Pangoro and or Quagsire would also be cool. Thanks yall

If it is Shuckle that you wish to use i recommend something like Webs Heavy Offense as a team style. while shuckle may or may not be the best choice for that type of team it is the team that it is useful the most on out of all of the rest of the team playstyles.

Cool thanks! What else would go into a team like that?

Generally, webs would something like this.
https://pokepast.es/35c0d4d7e2ebbc40
Not necessarily the same mons/movesets but generally this is what a variant of webs would look like.

Ty fam