Corsola

With a good Water / Rock defensive typing, an awesome ability in Regenerator, and a wide movepool, Corsola might seem like a good Pokemon. However, due to its extremely lackluster stats across the board, Corsola is in fact terrible. The only place where Corsola can find even a small niche is in stall, as its access to Stealth Rock, reliable recovery, and many other good options can make it a useful Pokemon to have. One of the biggest niches it has on stall is being able to put a full stop to Substitute + Bulk Up Braviary with the combination of Power Gem and Toxic. However, even on stall teams it faces heavy competition from staple physical walls that can provide more support to their teams than Corsola, including a way of stopping Substitute + Bulk Up Braviary. Recover and Regenerator are the main factors that make Corsola worth using over its competition, with none of the other Pokemon that are capable of stopping Substitute + Bulk Up Braviary having reliable recovery. Corsola also beats many of the tier's staple Pokemon, including Normal- and Flying-types such as Kangaskhan and Swellow. However, it has many exploitable weaknesses that Pokemon such as Roselia can take advantage of.