Gengar

The Cardmarket trend at £26.68 looks well out of line with what five UK sellers are actually asking—the cheapest is listed at £6.52, which is less than a quarter of that trend figure, so price to the asks rather than the index. Bear in mind the lowest copy is graded LP and flagged, so a clean example should command more; half the UK stock is played anyway, making Near Mint genuinely scarce here. For context, the pokeball printing of this card sits at £501.18—roughly 18.8× the price—if you're weighing up which version to chase.

• CautionCardmarket trend looks unreliable: 5 UK asks from £6.52 against a £26.68 trend. Price to the asks.
• CautionThe cheapest copy (£6.52) is flagged: graded LP by the classifier. A clean copy can ask more.
• Notable50% of the UK listings are played copies (2 of 4); a Near Mint copy is the scarce one.
• NotableThe pokeball printing is 18.8× this one (£501 vs £26.68).