"Nicknamed “the bully of the sea," Sharpedo is widely feared. Its cruel fangs grow back immediately if they snap off. Just one of these Pokémon can thoroughly tear apart a supertanker. Sharpedo can swim at speeds of up to 75 mph by jetting seawater out of its backside. This Pokémon's drawback is its inability to swim long distances."
"The fangs in Mega Sharpedo's mouth have transformed, and the horns that have sprouted from its nose can be regrown countless times. The yellow patterns on its body are scars carved into it in battle. With explosive propulsion, it can exceed 125 mph in an instant."
Sharpedo first appeared in Sharp Attack! when the group began to travel across the sea to Mossdeep City. While traveling, the group were surrounded by a horde of Sharpedo, which tried to attack them. After defending themselves and successfully scaring away many of the Sharpedo, Lexi decided to capture one, which helped the group slightly by secretly sabotaging the other Sharpedo's plans. The Sharpedo seemed to contradict the personality many of his species are plagued with.
During his time on Lexi's team, he was an extremely strong battler, but often failed because he became to angry and self-involved, resulting in him unintentionally ignoring Lexi. As time progressed, he improved upon this, which resulted in him becoming one of the strongest on her team.
Lexi's Sharpedo contradicts that of many Sharpedo, in that he doesn't want to cause harm or havoc for others. Despite contradicting his species in many ways, he's shown to have a hard time suppressing his "bullying" attitude, something which Lexi often points out as his weakness.
Sharpedo can swim at speeds of 75mph by jetting seawater through his body. His cruel fangs grow back immediately if they snap off, and can tear apart a super tanker.