>>20055281What would it be crunching, though?
Mold Breaker EQ deals with Smogwash and Gengar, and is arguably just as good if not better for Aegislash too since a +1 EQ will be a high-percentage damage range to OHKO anyways without having to risk being crippled from a King's Shield 50/50, so if Aegi took any previous damage before Megados set up, then GG for it. EQ will also hit Ferrothorn without having to take damage from the Iron Barbs. The Lati's both get OHKO'd by a +1 Ice Fang, no Crunch required, same with pretty much any other Dragon (well except for ZardX, which can be EQ'd.
Pretty much anything else you're better off Waterfalling for STAB (even in the sun a +1 Waterfall will OHKO Megazard Y assuming it's not invested for HP, which they rarely are).
The only thing I can see Crunch being a help for is Mega Venusaur, but really if MegaVenu isn't already at the very least weakened to a reasonable level before trying to set up you're doing it wrong. I guess Vaporeon too, but really who the fuck uses Vaporeon anymore, I'm amazed it's even OU still with BP banned. I guess another argument would be Celebi if it ever came back to OU, which it's guaranteed to never do as long as Aegislash is in the tier.
Honestly even if Gyarados got Crunch right now I probably wouldn't be changing my moveset on mine.