Rattata

There's no movement on the UK market for this card right now—no listings or graded sales in the last month—so your only reference point is Cardmarket, where it's priced at £29.54. That means if you're thinking of selling, you're genuinely in uncharted territory here, and any offer should be weighed against what's happening on the Continent rather than local precedent.

• NotableNo UK listings or graded sales in the last 30 days. Cardmarket is the only reference.