Pinsir

On a scale from 1 to 10, with 10 being the coolest, Pinsir scores at least a 12. Besides its fantastic design, Pinsir also boasts a fearsome base 125 Attack, above-average Speed, STAB X-Scissor to hit many of RU's walls super effectively, and powerful coverage moves such as Earthquake, Stone Edge, and Close Combat. Throw that all together and you have a dangerous offensive Pokemon. Unfortunately for Pinsir, "dangerous offensive Pokemon" are a common sight in RU, and Pinsir's limited switch-in opportunities and lack of a powerful STAB move have made it difficult to justify using over other physical sweepers like Kabutops, Gallade, and Durant. In fact, there's only one thing that really makes Pinsir worth considering over more standard alternatives: Moxie. Pinsir is the only viable Pokemon with Moxie in RU, giving it a unique ability to put constantly increasing offensive pressure on its opponent. Moxie forces Pinsir's opponents to respond predictably or risk losing the match quickly as Pinsir picks up boosts and becomes unwallable. It requires a significant amount of support to be successful; if you're looking for a physical sweeper that you can throw on your team as an afterthought and be successful, Kabutops or Gallade would be a better choice. On the other hand, if you're looking to build a team around an extremely manly bug with the potential to steamroll healthy teams in just a few turns, give Pinsir a shot.