Lairon

As one of the few Steel-types residing in the tier, Lairon has an immediate niche. A great Defense stat backed by a decent typing allows Lairon to almost completely wall a few Choice Band users, particularly Normal- and Flying-types like Raticate, Pidgeot, and Murkrow. However, Lairon comes with awful, terrible, horrible 4x weaknesses to Ground- and Fighting-type attacks, which are found on virtually all Choice Band users' sets, diminishing its overall effectiveness as a physical wall, which is compounded by its rather low Special Defense stat. Ultimately, Lairon is a subpar choice in the metagame but a neat Pokemon to use regardless if you want a super solid switch-in to Normal-, Flying-, Ghost-, and Rock-type attacks.