The Black Flute (Japanese: くろいビードロ Black Vidro) is a type of item introduced in Generation III. It is one of the flutes.
In the Generation V games, the Black Flute can be sold to the billionaire maniac in Undella Town for 8000.
When used in the field, reduces wild Pokémon encounter rate by 50%.
The Black Flute serves no practical purpose other than to be sold.
When used in the field, increases the level of wild Pokémon by one to three levels.