Colress's Tenacity is a Reverse Holofoil Promo card from the League & Championship Cards set, numbered 057/064. Currently valued at $0.36, it has experienced a notable increase of 38.5% in market value over the past 30 days. This card appeals to collectors due to its unique rarity and connection to the Pokémon Trading Card Game, highlighting Colress's character and strategy within the game's narrative.