I've had success with a similar Rapidash to erisia (the rest of my team didn't gel well with it though). Here's the set: Rapidash (F) @ Life Orb Trait: Flash Fire EVs: 112 HP / 180 Atk / 216 Spd Jolly Nature (+Spd, -SAtk) - Flare Blitz - Morning Sun - Will-O-Wisp - Megahorn Enough Speed to outspeed +spe base 100s (though I mean I can't do anything to Charizard, I should switch to Double Edge), a life orb number for HP with some bulk, and the rest in Atk. It works pretty well, though I 100% wish it got U-turn because that would allow me to take a fire attack and keep up momentum, instead of having to switch out when something comes in to wall it. I've also seen a lot of Stunfisk but they never seem to do anything? Maybe it's because I have Golem, Sawsbuck, and Ludicolo, all of which outspeed and can hit it super effectively.