Calista's Xatu (Johto)

Calista's Xatu are a /-type Pokémon previously owned by Calista.

Biography
Calista's Xatu were used to predict weather changes. One day, the Xatu predicted there would be a terrible rain, so Calista trusted them, believing that a prophecy of a great flood would happen soon. Before the flood came, Xatu battled Team Rocket to protect treasures the people left. Before leaving, Calista bid farewell to the Xatu, who teleported away.