>>45766079Stall is weak to setup sweepers and mons that generally resist hazards, like steel and poison types. Almost no Pokemon that would be legal in OU is strong enough to KO an entire stall core without any setup, not even darm.
Meanwhile, darm is weak to all hazards, can be easily scouted with protect and worn down with contact damage.
Urshifu-SS destroys stall, although there are ways to handle it by sponging Wicked Blow PP. Darm-G doesn't threaten stall cores in the slightest while completely suffocating hyper offence.