The most valuable SWSH Black Star Promos card is Charizard #SWSH066, worth about $621.21 in Near Mint condition, followed by Special Delivery Bidoof #SWSH177 at $586.35 and Special Delivery Pikachu #SWSH074 at $463.54. These are raw (ungraded) market prices from recent sales, updated daily. Graded copies sell for more; each card's page has its PSA, CGC and BGS prices.