Dewgong (Delta Species) is a Rare Reverse Holofoil card from the Pokémon Dragon Frontiers set, currently valued at $33.65. Over the past 30 days, it has experienced a notable increase of 34.6% in market value, reflecting growing interest among collectors. As part of the Delta Species series, this card features unique attributes that distinguish it from standard Pokémon, enhancing its appeal in the trading card market.