50 / 85 / 55 / 65 / 65 / 90
Run Away /
Flash Fire /
Flame Body
I used this in a few matches yesterday and it did OK. I brought it up a few pages ago and since I meant to test it, I figured I'd report my findings.
I ran a Leftovers set with Flare Blitz, Wild Charge, Will-o-Wisp, and Morning Sun. Not the greatest coverage and without WoW it does nothing to Quagsire switch-ins, but it still has awesome Speed and a very usable Attack stat to hit certain common threats hard like Klefki, Abomasnow, Ferroseed, Golbat, Poliwrath, Parasect, and Vivillon. I'm curious to try a Scarf set to outspeed just about anything as long as the target is not running Scarf, plus it can revenge Vivillon at +1 (89 vs 90 Speed, HYPE.) Even with Venomoth gone, I wonder if a Safety Goggles set would do well to be a surefire check to Spore/Sleep Powder so it doesn't fear falling asleep when it needs to check certain things.
Keep in mind it can't OHKO most stuff with decent bulk even on a STAB super-effective hit, so if you need to take Klefki, Poli, or Golbat out, make sure they have taken some prior damage first. Its closest competition is probably Monferno and Combusken, but the extra Fighting STAB isn't really hitting things Pontya can't except Rock-types, and the only viable ones in MMons are Lunatone, Solrock, Pupitar, and Rhyhorn I think, and two of them aren't even weak to Fighting.
Monferno does have a leg up with Iron Fist Mach Punch and the ability to go mixed, however. 81 is a far cry from 90 Speed to be honest, but dual 78 attacks aren't terrible. Combusken has 85/85 attacks and a stupid bad Speed of 55, but as we all know, it runs Speed Boost to remedy that. They both can run Swords Dance, though, giving them another edge in setting up. But Ponyta should be used more for hard-hitting Flare Blitzes, surprise WoWs, and then healing itself when possible to strike again.
Other options for the fire pony include Double Kick or Low Kick, but as I stated earlier, Fighting coverage isn't really doing it any favors, because STAB Flare Blitz is stronger than them on SE hits
unless Low Kick gets up to 100 base power (Rhyhorn, Dewgong, or Pupitar.) There's Quick Attack, but un-STABed won't do much. It also has Agility to outspeed everything, the unreliable Iron Tail (which hits every Rock-type hard), or even Sunny Day for powering up Flare Blitz and Morning Sun.
I ended up writing more than I expected, but to be honest Ponyta has its merits here. It's no top-tier archetype, but if I were to rank it on the viability chart, I would put it in a solid
B rank. So give it a try! That is all.