FusionDex

Jolpuff cluster together around electrical wires and appliances, feeding off the currents running through them. Their presence is destructive, but removing them can prove difficult, as they will sing people to sleep should they try to disturb them.

Nothing can avoid falling asleep hearing a Jolpuff's song. They attach themselves to large-bodied Pokémon and absorb static electricity, which they store in an electric pouch.