Magnezone

Magnezone's niche in Ubers comes from Magnet Pull, which allows it to trap prominent Steel-types such as Necrozma-DM and Ferrothorn. This allows its hard-hitting teammates such as Galarian Darmanitan and Xerneas to break through teams more easily. Though it's good at its job, it still has very big flaws that make it difficult to use. Magnezone's low Speed and mediocre Special Defense mean that many common offensive Pokemon revenge kill it; Eternatus, Kyogre, and Calyrex-S are able to both offensively and defensively check Magnezone. Against teams using different defensive counterplay than Necrozma-DM to the sweepers Magnezone is partnered with, it can end up rather useless.