Tynamo

“While one alone doesn’t have much power, a chain of many Tynamo can be as powerful as lightning.”

— Pokémon Black

“These Pokémon move in schools. They have an electricity-generating organ, so they discharge electricity if in danger.”

— Pokémon White

“One alone can emit only a trickle of electricity, so a group of them gathers to unleash a powerful electric shock.”

— Pokémon Black 2