Tina is a character from Pokémon Masters EX, serving as the player (
Scottie or
Bettie)'s secondary rival, alongside
Paulo's best childhood friend. With her main partner Pokémon being a Flareon, she is more laid back when it comes to battling, understanding that it's okay to lose sometimes, and tries to help Paulo see the same thing.
Tina was originally in the files for Pokemon Masters from 1.0 until 1.4 under the name "Camilla / サザンカ (Sazanka)". Her name was changed when she was officially released in the game.