The fins on this Pokémon's body can sense oncoming weather. If the weather is going to get bad, Swampun will find its partner and use electrical signals together to warn other Pokémon in the area to seek shelter before the storm.
At a meeting of Pokémon academics, it was announced that simultaneous exposure to electricity from a Plusle and Swampun will promote circulation and boost vitality. If it senses the approach of a storm and a tidal wave, it protects its seaside nest by piling up boulders.
