Greta

Greta, known as Kogomi in Japanese, is a significant character in the Pokémon series, appearing in both the games and anime. She is the Frontier Brain and leader of the Battle Arena in the Battle Frontier, also holding the unique Trainer class title of Arena Tycoon. Greta has a straightforward personality, openly acknowledging when an opponent seems weak. She favors strong Trainers and rewards them with the Guts Symbol upon defeat. In the anime, Greta specializes in Fighting-type Pokémon and trains at her dojo with many apprentices. Her Pokémon are known for their speed and powerful physical attacks, but they are vulnerable to attacks from above or behind. Greta also appears in the manga, particularly in Pokémon Adventures, where she is one of the seven Frontier Brains and engages in a fierce battle with the protagonist, Emerald. Her notable Pokémon include Hariyama, Medicham, and Breloom. In Pokémon Masters EX, she forms a sync pair with Breloom, capable of Dynamaxing.