Castform from the EX Hidden Legends set (Pokémon Trading Card Game, #30/101) is an Unknown rarity card that occupies a niche spot in late-2000s collectors’ sets. Market listings currently show a value of $0.00, indicating minimal demand or ungraded, common-condition offerings. Grading or confirmed sales data can materially change that valuation, so collectors should verify condition and transaction history before assigning value.