Melmetal will suffer from the same problems as any Magnezone deck does: consistency. Don't get Magnezone in play and you're done. I wouldn't get too hyped about it.
Also, Blacephalon is very much still a thing. Whether or not Melmetal does or does not play Frying Pan shouldn't matter too much.
Also, Blacephalon is very much still a thing. Whether or not Melmetal does or does not play Frying Pan shouldn't matter too much.