A Marvelous Duel at the Bug-Lover's Gym! is the twenty-third chapter in the Pokemon Battle Adventures Black and White saga.
- Travis's Oshawott evolves into Dewott, defeats Burgh, and earns the Insect Badge.
- Hayden defeats Burgh in his third Unova Gym battle in Castelia City and earns the Insect badge.
- Hayden's Palpitoad is confirmed that Swift Swim is his ability.
- Hayden's Lampent is confirmed that Flame Body is his ability.
- Hayden and Travis decide to challenge the Nimbasa City Gym.