Plusle

“PLUSLE always acts as a cheerleader for its partners. Whenever a teammate puts out a good effort in battle, this POKéMON shorts out its body to create the crackling noises of sparks to show its joy.”

— Pokémon Ruby

“When PLUSLE is cheering on its partner, it flashes with electric sparks from all over its body. If its partner loses, this POKéMON cries loudly.”

— Pokémon Sapphire

“It has the trait of cheering on its fellow POKéMON. By shorting out the electricity it releases from its paws, it creates pom-poms for cheering.”

— Pokémon Emerald