Rapidash

Rapidash has a niche as one of the few pure physical Fire-types in PU, and it is the best one, as it has superior coverage, higher Speed, and access to instant recovery in Morning Sun over the stronger and bulkier Flareon. Rapidash fits very well on offensive and balanced teams due to its good Speed and Attack, as well as Flash Fire, which grants Rapidash a 1.5x boost to Flare Blitz if it switches into a Fire move. Rapidash also has access to good coverage moves such as Wild Charge and Drill Run to hit Pokemon hard that resist Flare Blitz. Rapidash's typing is occasionally useful, as coupled with Flash Fire, it makes it a great check to offensive Fire-types such as Ninetales and certain Grass-types; however, it also leaves Rapidash weak to a lot of common attacking types such as Water and Ground and gives it a weakness to all entry hazards. This entry hazard weakness, coupled with recoil moves and low bulk, limits the amount of times Rapidash can switch in if it doesn't get an opportunity to use Morning Sun. Rapidash's coverage moves are also somewhat lacking in power without an item to boost them, but those boosting items come with their own disadvantages, such as extra recoil damage and locking Rapidash into one move.