M Steelix EX (Full Art) is an Ultra Rare Holofoil card from the XY - Steam Siege set, numbered #109/114. As a notable addition to the Pokémon Trading Card Game, it features striking artwork and powerful gameplay potential. Currently valued at $25.89, its market presence reflects both collector interest and competitive viability. This card appeals to both players and collectors looking to enhance their decks or complete their sets.