From Bulbapedia, the community-driven Pokémon encyclopedia.
Leafeon has been featured on 9 different cards since it debuted in the Majestic Dawn expansion of the Pokémon Trading Card Game. Leafeon cards are normally Grass-type Stage 1 Pokémon. In Japan, Leafeon was featured in the Leafeon vs Metagross Expert Deck released in November 2009.
List of Pokémon cards featuring Leafeon