Starmie

With an amazing base 115 Speed, a good Water / Psychic typing, reliable recovery, and a great support movepool consisting of moves like Thunder Wave and the coveted Rapid Spin, Starmie is very much a solid Pokemon. Starmie's access to Rapid Spin is massively helpful for many teams, as it can prevent its team from being worn down over time, and Starmie is easily the most consistent Rapid Spin user in the tier due to its ability to threaten all Spikers and spinblockers. Additionally, Starmie's typing gives it useful resistances to Fighting-, Ice-, and Psychic-type moves. That, combined with its great Speed tier and access to Recover, allows it to counter critical offensive threats like Machamp and Charizard as well as letting it check many important Pokemon such as Steelix, Tyranitar, Rhydon, Marowak, and Nidoking. However, Starmie struggles to do any significant damage to the very common Raikou and Zapdos as well as the ubiquitous Snorlax, all of which pose a massive threat to it. Therefore, Starmie does not usually run offensive sets and tends to run a more defensive set with Rapid Spin and Thunder Wave utility. Unfortunately, this can prove to be problematic due to Starmie's below average bulk and constant need to use Recover or Rapid Spin, which can give free turns to extremely dangerous Pokemon such as Snorlax, Zapdos, and Exeggutor.