Dialga from the Great Encounters set is a Rare rarity Reverse Holofoil card, numbered #16. Valued at $3.52, it represents a notable addition for collectors focusing on the Diamond and Pearl era of Pokémon cards. Its unique Holofoil treatment enhances its visual appeal, while its status as a Legendary Pokémon contributes to its desirability in the market. Collectors often seek out this card for its blend of gameplay relevance and collectible value.