Graded Market · 39 completed sales
Slowpoke (Master Ball Pattern) graded prices.
As of August 22, 2026, Slowpoke (Master Ball Pattern) (Prismatic Evolutions #018) in PSA 10 sells for a median of $127.49, based on 39 real eBay completed sales; the raw copy’s reference price is $7.37 — a 17.3× grading premium at the top grade.
Across Prismatic Evolutions, PSA 10 copies sell for 44.2× their raw reference price on average (123 cards, 8,674 PSA 10 completed sales tracked).
PSA · Slowpoke (Master Ball Pattern)
| Grade | Median | Sales | vs Raw |
|---|---|---|---|
| Gem Mint 10 | $127.49 | 21 | 17.3× |
| Mint 9 | $18.50 | 12 | 2.5× |
| NM-MT 8 | $10.00 | 3 | 1.4× |
Medians of real eBay completed sales per grade; small sample sizes deserve caution. Prices are dated reference values — cite them with the as-of date above. Attribution: CardIntel (cardintel.io). See the methodology.