Marnie is a character from the Pokémon series, specifically introduced in the Pokémon Sword and Shield games. She is a determined and stoic trainer from the Galar region, known for her competitive spirit and strong connection with her Morpeko. Marnie is a rival character who participates in the Gym Challenge, aspiring to become the Galar Champion. Her journey is motivated by a desire to bring recognition to her hometown, Spikemuth. Marnie is also the younger sister of Piers, the leader of Team Yell, a group dedicated to supporting her in her quest.