Donphan

Donphan is a unique Pokemon in the GSC metagame that finds a small niche thanks to an interesting combination of traits. As a Ground-type with access to the coveted Rapid Spin, it faces competition with the more popular Golem, but Donphan's lack of a secondary typing means it's one of the few Ground-types in OU that lacks a weakness to opposing Ground-type attacks. This gives it favorable matchups against metagame staples such as Steelix, Rhydon, Raikou, Tyranitar, and the aforementioned Golem. Donphan's excellent Defense also allows it to check some non-Curse Snorlax sets despite lacking a Normal resistance, although it doesn't appreciate repeated hits with Spikes in play. Being a spinner with a strong STAB Earthquake means it's extremely risky for Gengar and Misdreavus to try spinblocking against Donphan, making it proficient at keeping Spikes off the field against a variety of teams.

However, Donphan remains an extremely rare sight in GSC because its unique traits are ultimately limited and not without downsides; while it has certain advantages over Golem, Golem remains the more popular choice of Rapid Spin user thanks to its STAB on Rock-type moves and ability to check a wider variety of Snorlax sets, making it less restrictive on teambuilding. Starmie is another stiff competitor to Donphan for teams wanting a spinner that checks common Normal-resistant foes, boasting Recover and an excellent Speed tier as major advantages. Donphan's low Special Defense and frequent inability to fit Rock-type coverage also makes it helpless against two of the most common Pokemon in the tier, namely Zapdos and Cloyster, although its Electric immunity is still great for pivoting around the former.