Sharpedo gains Liquidation as a Move Tutor in Ultra Sun and Ultra Moon, and I know how this Sharpedo works!
7th Gen Sharpedo @ Sharpedonite
Ability: Rough Skin/Speed Boost ———> Strong Jaw
EVs: 4 HP / 252 Attack / 252 Speed
-Liquidation (Very good power, STAB)
-Crunch (Good power, STAB, Strong Jaw boost)
-Ice Fang/Poison Fang (Both good coverage against Grass Types, Strong Jaw boost)
-Earthquake (Very good coverage for Electric Types)