Leafeon was a Pokémon Zoey got before she got her fifth ribon. Leafeon was used in battle with Dawn, when she attempted to learn a new combo move. Though Dawn lost, she had a good idea of how to perform it.
Later, Zoey's Leafeon (with Mismagius) appeared in a fight with Nando's Kricketune and Lopunny in the Grand Festival. Though both trainers raised their Pokémon well, Zoey used the combo of Aerial Ace and Psywave, causing Nando to lose the fight.