Hydreigon

SWSH Black Star Promos · SWSH037/307

Illustration: Taira Akitsu → All Staff Stamp cards →

Staff Stamp €559,67 4 sales Normal €10,41 47 sales

Market price

€10,41

How is this value calculated?

Ladder estimate · English · ~€10,41 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	6	55 d	€10,41	48.98

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €10,41 · Σ g = 48.98

Measured error for this era×language (backtest): ±17 %

Ladder estimate · Deutsch · ~€11,64 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.1182 (Sprach-Faktor aus 79 Karten)	6	55 d	€11,64	2.15

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €11,64 · Σ g = 2.15

Measured error for this era×language (backtest): ±22 %

Ladder estimate · Français · ~€12,45 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.1956 (Sprach-Faktor aus 14 Karten)	6	55 d	€12,45	1.75

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €12,45 · Σ g = 1.75

Measured error for this era×language (backtest): ±20 %

Gate not green — shown only here, never as the price.

Ladder estimate · Italiano · ~€11,81 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.134 (Sprach-Faktor aus 112 Karten)	6	55 d	€11,81	7.93

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = €11,81 · Σ g = 7.93

Measured error for this era×language (backtest): ±18 %

PSA Population

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

Recent sales · 4

2026-07-12	UNKNOWN	PSA 9	Pokemon TCG PSA 9 Hydreigon Staff Stamped SWSH037 Sword and	€87,96
2026-06-03	EN	PSA 10	Black Star Promo Hydreigon SWSH037 Darkness Ablaze Prereleas	€559,67
2026-04-22	IT	PSA 9	2020 POKEMON SWSH BLACK STAR PROMO PRERELEASE-STAFF #037 HYD	€29,19
2026-04-13	IT	PSA 9	2020 POKEMON SWSH BLACK STAR PROMO PRERELEASE-STAFF #037 HYD	€66,49

Frequently asked questions

Is it worth grading Hydreigon SWSH Black Star Promos SWSH037/307?

A PSA 10 currently sells for about €559,67, raw the card sits at €10,41 — 53,8× as much. Mathematically, submitting returns €559,67 on average, before fees and shipping. Rule of thumb: submit when the value at a realistic grade is at least double the raw value — which is the case here. Centering decides it: an off-centre card will not get a 10.

How does lastsold determine the market value?

lastsold 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.