Nidoking

Nidoking is a very scary wallbreaker in the OU metagame thanks to its huge offensive movepool, as well as Sheer Force bolstering its power even further. Its Poison / Ground typing allows it to function as a very solid Clefable switch-in, and thus it has a great matchup against balanced teams that use Clefable. However, despite being able to easily beat one of the biggest threats in the metagame, Nidoking has its fair share of flaws that prevent it from being a top-tier threat. Nidoking's Speed leaves it outpaced by the majority of offensive threats, though it outspeeds Pokemon like Mega Altaria, Gardevoir prior to Mega Evolution, and Heatran. Nidoking also lacks bulk, leaving it vulnerable to faster attackers and priority users. Furthermore, it faces strong competition from other wallbreakers such as Manaphy, Gengar, Alakazam, and Kyurem-B because they are either faster, stronger, or bulkier.