Cresselia

Cresselia's obscene bulk and colorful movepool make it a versatile wall in the metagame. It can act as either a hard-to-kill setup sweeper with Calm Mind and Moonlight or a supporting teammate that can paralyze Pokemon that try to set up on it, like Gyarados. Cresselia's exclusive access to Lunar Dance lets it fully heal and even cure teammates such as Galarian Zapdos, Basculegion-F, and Bisharp of status so that they can continue to break walls. Additionally, Cresselia has solid coverage in Ice Beam and Moonblast, threatening slower Pokemon like Hippowdon and Crawdaunt. However, Cresselia's mono-Psychic typing is underwhelming defensively, leaving it weak to common attackers like Gengar and Krookodile while offering few notable resistances in return. This means that Cresselia is often forced to Terastallize in order to wall threats effectively. Additionally, its Special Attack is rather pitiful, forcing Calm Mind sets to accumulate several boosts in order to break through defensive Pokemon like Hisuian Goodra and Slowbro; as such, it is often crippled by disruption such as Trick or Encore from Jirachi as well as Taunt from the likes of Krookodile. Cresselia also faces stiff competition from the tier's many Psychic-types, namely Slowbro and Jirachi, as a Calm Mind wall and utility Pokemon, respectively.