Klinklang

“The gear with the red core is rotated at high speed for a rapid energy charge.”

— Pokémon White

“Its red core functions as an energy tank. It fires the charged energy through its spikes into an area.”

— Pokémon Black

“The minigear spins at high speed. Then the energy from the red core charges the minigear to make it ready to fire.”

— Pokémon Black 2