From Bulbapedia, the community-driven Pokémon encyclopedia.
Mudkip has been featured on 15 different cards since it debuted in the EX Ruby & Sapphire expansion of the Pokémon Trading Card Game. Mudkip cards are normally Water-type Basic Pokémon. In Japan, Mudkip was featured in the Mudkip Constructed Starter Deck released in January 2003.
List of Pokémon cards featuring Mudkip