Slowbro

Thanks to its typing, high HP and Defense, and access to Regenerator, Slowbro does a fantastic job at slowing down or outright stopping some of the most dangerous wallbreakers and setup sweepers of the tier in their tracks, including the likes of Galarian Zapdos, Krookodile, Terrakion, and Barraskewda. In addition to being one of the best damage sponges in the tier, Slowbro also has a vast arsenal of offensive and disruption tools, including Scald, Psychic Noise, Thunder Wave, and Future Sight. These attributes allow Slowbro to trade hits remarkably well against many defensive pieces of the tier, like Jirachi, Cyclizar, Hippowdon, and Registeel. This resilience allows Slowbro to use Calm Mind in order to turn into one of the deadliest late-game sweepers the tier has to offer, ending games after it wins the war of attrition against opposing tanks. Despite all these attributes, Slowbro is not unstoppable in what it's set out to accomplish. Its typing and lower Special Defense leaves Slowbro vulnerable to the many Ghost- and Electric-type attackers roaming the tier, such as Gengar, Basculegion-F, and Magnezone. The strongest wallbreakers in the tier, such as Choice Band Galarian Zapdos and Crawdaunt, can overpower Slowbro after minimal chip damage. Slowbro also struggles against wallbreakers with super effective STAB attacks, such as Crawdaunt, Bisharp, and Mimikyu, without expending Tera. Because the Pokemon that Slowbro checks often carry Knock Off, it often finds itself losing its item quite early, leaving it vulnerable to passive damage from hazards and status, particularly Toxic, without Heavy-Duty Boots or Leftovers to mitigate it.