Well as for parting shot CaptainZippers and I were evaluating its usefulness as a gateway for setting up. What setup sweeper wouldn't like to come in on a mon with lowered attack stats? Intimidate alone helps gyarados get a sub or dd, so a double attack drop and a spattack drop is especially useful. Not only sweepers too. Anything would love to come in after a ps.Why is everyone in love with Parting Shot here? Pangoro is still a slow pokemon and parting shot doesn't look like it is priority (if it is then I can see why it's great), but it does absolutely nothing to offset Pangoro's weaknesses. Any fairy type move or fighting type move from a strong pokemon will kill Pangoro instantly. It's dark/fighting type is way worse this gen than in previous gens because fairies and fairy type moves OHKO it every time, and the parting shot decrease to attack/special attack doesn't seem like it will cripple anyone all that much.
Basically, I trained one on my X team, finding it to be probably my least useful pokemon now, and I'm not exactly sure why parting shot would help it be more effective.
Pangy's typing is great offensively, hitting for SE damage on some top threats I covered earlier. Defensively it nets an immunity and a 4x resist. Not too great but not too shabby either.