"Cammie likes reading and hanging out with her science club pals. What she really loves, though, is destroying her brother Grayson (or anyone else who's handy) at Pokémon. She's come in 1st in several Leagues, and she is playing odd decks just to feel challenged again."
Players face Cammie in the final round of the Gold League, after defeating Mick for the second time. After defeating Cammie, players move on to the Platinum League.
Players face Cammie in the tenth round of the Platinum League, after defeating Brittney. After defeating Cammie, players move on to face Kendall.
Players face Cammie in the seventh round of the City Championship, after defeating Otis. After defeating Cammie, players move on to face Daniel.
Cammie appears during in the Pokémon Trading Card Game Online to warn players when they have been inactive too long during a Match, which causes them to forfeit the game if they do not become active again in 15 seconds. Typing a message in the Social menu's "Game Chat" does not count towards activity.
Cammie's XY decks
Unlike most NPC characters, Cammie only has two versions of her deck. One is played in Easy difficulty while the other is played in both Medium and Hard difficulties.