Decidueye

Decidueye is an incredibly powerful physical attacker, using Swords Dance-boosted Spirit Shackle, Poltergeist, and Leaf Blade to do massive damage to opposing walls, such as Amoonguss, Registeel, and Gligar, and revenge killing faster foes like Munkidori and Chandelure with Shadow Sneak. It also serves as one of the few viable users of Defog in the tier, taking advantage of the fear its powerful physical sets create to find turns to clear entry hazards. Its typing allows it to switch in on common attackers like Paldean Tauros-W, Breloom, and Flygon, and it often finds turns to set up in front of common defensive Water-types like Gastrodon, Vaporeon, and Milotic. Its ability to throw out powerful attacks is only enhanced by Long Reach, which allows it to avoid the threats of Chandelure's Flame Body, Bellibolt's Static, and Rocky Helmet. Decidueye does struggle with its mediocre Speed though, particularly on offensive sets. Even Swords Dance-boosted Shadow Sneak does not often pick off neutral targets from full HP without Tera Ghost, leaving Decidueye open to being revenge killed by many faster and Ghost-immune foes such as Cinccino, Porygon-Z, and Tera Normal Toxtricity. Decidueye's STAB types are also walled by several common Pokemon, namely Overqwil, Alolan Muk, and Incineroar. Defog sets must also be careful of several Competitive and Defiant Pokemon, such as Kilowattrel, Galarian Articuno, Milotic, and Tornadus.