Spiritomb

When compared to most Pokemon in the tier, Spiritomb is unique in that it possesses three immunities and a lone weakness to Fairy thanks to its Ghost / Dark typing, allowing to check a myriad of Pokemon, including Meloetta, Malamar, and Gallade. Its typing is further complemented by its decent natural bulk, allowing to remain a consistent answer to the Pokemon it checks. It has a relatively wide movepool as well, with support options such as Will-O-Wisp, Calm Mind, and Taunt, priority in the form of Sucker Punch, and access to Pursuit, allowing it to trap the Pokemon it forces out. In addition, Infiltrator allows Spiritomb's attacks to bypass Substitute, enabling it to revenge kill Pokemon behind one with Sucker Punch or cripple them with Will-O-Wisp. Spiritomb's access to Calm Mind also allows it to act a bulky setup sweeper for defensive teams, giving it a valuable niche. However, Spiritomb is hindered offensively due to its low Speed, causing it to rely heavily on Sucker Punch to deal meaningful damage and therefore leaving it to be easily exploited by threatening Pokemon such as Houndoom and Emboar. Furthermore, its lack of a strong Ghost-type STAB move means that its type coverage is limited to only Dark-type attacks. Defensively speaking, Spiritomb is hindered by a low HP stat and a lack of reliable recovery, making it fall short in effectiveness when compared to other defensive Pokemon in the tier such as Jellicent and Alomomola.