Sharpedo, the Brutal Pokémon. Sharpedo can shoot out a jet of water, allowing it to swim at 80 miles per hour. Due to their sharp fangs, they’re highly feared and known as the Gangs of the Sea.
– Ash’s Pokedex
Sharpedo looks weird, because it looks like just a shark’s head; it looks like it should have a lower body but doesn’t (it doesn’t even have a tail), probably because it’s also based on a torpedo.
Sharpedo’s family is the only Water/Dark family. Crawdaunt is also Water/Dark, but its pre-evolution Corphish is pure Water.
Stat-wise, it has high Attack, Sp Attack and Speed, but very poor Defenses, making it a glass cannon. Its ability Rough Skin, was unique to its family until Gen V. In Gen V, Sharpedo can get Speed Boost from the Dream World, making it more useful offensively. Due to its weak defenses though, it’s still easily killed by priority moves, especially Fighting moves like Vacuum Wave and Mach Punch.