Explaining the team:
Slowking is there due to it having a good movepool, access to the ability regenerator and good bulk. I'm specifically running it so I can hit Clefable for super effective damage and so I can bait Great Tusk into a tera water surf.
Palossand is there because its the highest defense ghost type with recovery and because ground + ghost is a good offensive typing. So I can run a tanky pokemon to block rapid spin which can also be good offensively.
Blissey is there to support with heal bell and healing wish its also a good special wall alongside AV slowking.
Avalugg is there as my hazard removal, i'm using him because he's very tanky with 184 base defense, has access to recovery, and because he's my favorite pokemon.
Lastly I have ditto and clefable which are both there to just deal with setup sweepers.