Eviolite is a Trainer card from the Black White Promo set, classified as a Gym Challenge - Japanese variant card (#97). This item is notable for its strategic use in Pokémon battles, enhancing the defense of unevolved Pokémon. Currently valued at $31.00, it holds a place of interest among collectors and players alike, particularly those focusing on the competitive aspects of the game. Its rarity and functionality contribute to its appeal in the market.