>>28625346Every single pokemon is your highest-damage STAB attack, plus 3 utility moves.
Normal types, since they have the highest natural BP STAB attack (Return), along with a plethora of good setup moves and other various status attacks, dominate the Sweeper meta. Normal Gem STAB Explosion also ends up way more powerful since Ghosts and Steels can't wall it. Anything with high defensive stats can be a workable wall.
Basically, the meta becomes gross and boring. Everything is literally Normal types and there's no reason to use anything else unless you need a wall, or there's a niche to fill, like Speedboost passing or Prankster shenanigans.