nest-ball

Used in battle : Attempts to catch a wild Pokémon. Has a catch rate of given by `(40 - level) / 10`, where `level` is the wild Pokémon's level, to a maximum of 3.9× for level 1 Pokémon. If the wild Pokémon's level is higher than 30, this ball has a catch rate of 1×. If used in a trainer battle, nothing happens and the ball is lost.