Rain Castform Japanese Pokémon Card Value

How much is a Rain Castform Japanese card worth? Around $9.90 ungraded. Current market prices are listed below.

Prices last updated August 2, 2026

Rain Castform – Undone Seal (026/083)

Set: Undone Seal

Variant	Market	Low	High	30-day avg	PSA 10
Normal	$9.90	$9.90	$9.90	—	—

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