Swampert EX

A PSA 10 English Swampert EX (XY Black Star Promos XY55/211) is worth about €7,798 (≈ $8,695), based on 1 sale in the last 12 months, blended with an estimate from PSA 9 (2 PSA 9 sales); most sales fall between €5,777 and €10,527. A PSA 9 English Swampert EX (XY Black Star Promos XY55/211) is worth about €247 (≈ $275), based on 2 sales in the last 12 months, blended with an estimate from PSA 10 (1 PSA 10 sale); most sales fall between €93.69 and €333. A PSA 8 English Swampert EX (XY Black Star Promos XY55/211) is worth about €69.94 (≈ $77.98), based on 1 sale in the last 12 months, blended with an estimate from PSA 9 (2 PSA 9 sales); most sales fall between €42.09 and €94.41.

EverySlab recomputes the Swampert EX fair values every day, most recently on Oct 28, 2026. Each grade and language gets a median of completed sales from the last 12 months on eBay, Fanatics Collect and Goldin, with older sales adjusted to today's market and recent sales counting more; thinly traded grades are estimated from related grades and languages. How fair value works

None sold on EU venues in the last 90 days (1 copy on all venues), so there is no EU pace to time a sale from. Listed at €7,798, one copy nets about €7,178 on Cardmarket after fees.