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Bronzong · Staff Stamp
XY Black Star Promos

Bronzong · Staff Stamp

XY Black Star Promos · XY21/211
Illustration: match → All Staff Stamp cards →
Market value · English · Near Mint
£37.38

What is Bronzong · Staff Stamp XY21/211 (XY Black Star Promos) worth?

As of 2026-10-24: In Near Mint, an English copy of Bronzong · Staff Stamp XY21/211 is worth about £37.38, based on 2 real sales.

  1. 1
    Real sales

    2 completed Near Mint sales from eBay, Goldin and Fanatics, each one checked on the listing page.

  2. 2
    Outliers out

    Prices far above or below the median are dropped: lots, fakes, mismatched cards.

  3. 3
    Recent counts more

    Newer sales weigh more than old ones, so the value follows the market, not the yearly average.

No estimate, no asking prices. Paid sales only.
Origin: Prerelease / Build & Battle · Tournament / league play · Phantom Forces ≈
Unlimited · 2013 XY Black Star Promos · XY21 £15.13
Market price
£37.38
based on 2 sales
Price history · RAW
2026-08-12 · £35.45 £37.38 · 2026-10-12
How is this value calculated?
Ladder estimate · English · ~£15.13 gruen prerelease
Evidence pathSalesAgeValue vᵢWeight gᵢ
eigene rohe NM-Verkäufe4 27 d £16.7832.65
eigene LP-Verkäufe ÷ 0.70765 22 d £7.194.56
value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £15.13 · Σ g = 37.21

Measured error for this era×language (backtest): ±19 %

PSA Population

No PSA numbers for this print yet — in any language.

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FAQ

Frequently asked questions

How does Last Sold determine the market value?

Last Sold uses only real sales — eBay plus auction houses like Goldin & Fanatics — recent sales count more (recency weighting), outliers and fakes are removed. It's not an estimate but actual sold prices, separated by condition, language and grading.