Roxie

Roxie is a Unova Gym Leader specializing in using -type Pokémon who will appear in Pokémon Black 2 and Pokémon White 2 and made her anime debut in BW085.

In the games
Roxie is the second Gym Leader of Unova in Pokémon Black 2 and White 2, specializing in -types. Upon defeat, she will award the player the Toxic Badge.

In the anime
Roxie made her debut in BW085 and was Ash's final Gym Leader he faced after he heard the Opelucid Gym was closed. She's the lead vocalist and bass player of her band "The Koffing" and she exudes confidence. Unlike other Gym Leaders, she pits her three Pokémon against her opponent's entire team, stating that if her opponent beats her team, she gives them the Toxic Badge.

Trivia

 * Roxie is the first Gym leader to make an appearance in the anime before her debut in the games.
 * Roxie's instrument appears to be designed after the Venipede family.
 * Roxie's name may be a combination of the music genre "rock" and "toxic" which relates to -type.
 * Roxie is the first Poison-type Gym leader since Kanto's Koga and his daughter Janine.
 * Roxie and the Cianwood Gym Leader Chuck would have their respective episodes as season finales, except Ash won the Storm Badge in one episode while he won the Toxic Badge in the episode after she made her debut.