From Bulbapedia, the community-driven Pokémon encyclopedia.
Deoxys has been featured on 24 different cards since it debuted in the EX Dragon expansion of the Pokémon Trading Card Game. Deoxys cards are normally Psychic-type Basic Pokémon. Deoxys was featured in the EX Deoxys expansion released in February 2005, as well as the Deoxys Constructed Starter Deck and Deoxys Half Deck of the Gift Box Emerald released in July and November 2004 respectively in Japan.
List of Pokémon cards featuring Deoxys