My advice: Don't use Pangoro.
Pangoro is outclassed as a Fighting-type by just about every other Fighting-type because he doesn't even get Close Combat. STAB Crunch and Parting Shot mean little when it means you get demolished by anything with Dazzling Gleam.
Parting Shot is also a bad move. If you're going to devote your item to outspeeding a threat, and you encounter that threat, you should probably just KO them instead of wasting time dropping their attack stats. Good luck doing that when your strongest stab move is 85 bp and doesn't even have 100 accuracy. You could try Hammer Arm, but that would defeat the purpose of scarfing him, and even that doesn't have 100 accuracy...
If that wasn't bad enough, all of Pangoro's abilities are worthless. Sky Uppercut and Hammer Arm (the moves he has to take advantage of Iron Fist) are bad. You aren't running any moves that require Mold Breaker, and if you come up against a ghost then you should be crushing it with your STAB, super effective Dark attacks instead of trying to be funky and cool by hitting it with Sky Uppersuck, Never mind the fact that since you're a Dark-type, no ghost will ever switch into you anyway.
If you're looking for a Fighting-type ass-kicker, try any of the following:
Heracross. He's strong and way faster than Pangoro, has abilities he can actually use, and both of his stab moves have 120 bp. He makes a better scarfer than Pangoro and you can even Mega Evolve if you are so inclined.
Conkeldurr. Much sturdier and much stronger than Pangoro. If you want someone to take advantage of Iron Fist, he's your guy, although Sheer Force is arguably better. With Drain Punch and Assault Vest, he can live for a long time and take random weak special attacks.
Lucario. Fast, powerful, and a billion options. You can't go wrong with this guy.
