From Bulbapedia, the community-driven Pokémon encyclopedia.
Renna is a member of Team Great Rocket from Template:Card GB 2. She is one of the Trainers at the GR Lightning Fort.
Her deck, Chain Lightning by Pikachu Deck (Japanese: ピカチュウでビリビリデッキ), focuses on and Pokémon, especially on Pikachu cards. She accepts duels only if the player has 4 Pikachu cards in the active deck.
When defeated, she gives out one We Are Team Rocket booster pack. Also, when defeated for the first time, she opens the door to the next room, allowing the player to reach Ichikawa.