Banette debuted during the Hoenn Grand Festival when Harley used it to impress, and disturb the judges by having it use Thunder on itself. When it was hit by the powerful attack, Banette simply cackled as though the electricity wasn't hurting it at all. The next round, during his battle against May at the Grand Festival, Harley sent Cacturne and Banette against her May's Bulbasaur and Beautifly.
Banette started off with Screech, which lowered Beautifly and Bulbasaur's defenses. In addition, Cacturne fired Bullet Seed on them, which May's Pokémon barely evaded. Bulbasaur used Vine Whip to grasp their legs, and Beautifly emitted Silver Wind to hurt them badly. As Harley's Pokémon stood up, Bulbasaur went to repeat its attack, but Banette's Torment prevented that move from being used. Cacturne fired Pin Missile, but Bulbasaur went atop of Beautifly, and used Petal Dance against Banette's Will-O'-Wisp. Cacturne fired another Pin Missile to counter Petal Dance, but in that distraction, May's Pokémon fired Razor Leaf and Silver Wind. Both of Harley's Pokémon were knocked down, and Harley, due to having no more points left, lost the battle.
Bannette reappeared in Kanto when Harley lent his Banette to Jessie in an attempt to help her beat May in the final Pokémon Contest before the Grand Festival in an attempt to prevent May from entering. Because it was unfamiliar with her, Jessie continued to tell Banette to use Frustration. This eventually resulted in Jessie's loss to May. Harley also used Banette in the appeals round during the Kanto Grand Festival.
- Ikue Ōtani (Japanese)
- Chinami Nishimura (temporarily during Ōtani's maternity leave)
- Darren Dunstan (English, 4Kids)
- Jimmy Zoppi (English, TPCi)