Pokémon AlphaOmega and RubySapphire

[Tellis]

Yeah, it's not like you're forced into going Mega when you send it out.

So you run Protect, Crunch, Ice Fang and Aqua Jet. Obviously you run Protect first turn you're out to assure a Speed Boost going off. Maybe again at the risk of it failing and you taking a hit, but honestly with the fact that ALL of Mega Sharpedo's stats go up, won't be surprising to see its Speed get up to the point where it outspeeds all of its big threats with only one Speed increase. At that point, you Mega and proceed to go to town with, as Sportoise said, a 180 base power Crunch (with the boosts from STAB and Strong Jaw), most likely KOing anything that doesn't resist and isn't carrying a massive Defense stat. And you're packing Aqua Jet for priority to counter anything else's priority moves. And Ice Fang because... why not, its the strongest non-STAB move that Sharpedo will have access to, getting up to base 97 from Strong Jaw.

Two hopes: please Game Freak give it access to the other Fangs through Move Tutor and please Smogon don't ban it