Professor Turo's Scenario

Prismatic Evolutions · 121/131 ·Uncommon

Illustration: hncl → All Master Ball cards →

Master Ball $3.13 1 sales Poké Ball $2.04 57 sales Normal $1.04 15 sales

Market price

$3.13

How is this value calculated?

Ladder estimate · English · ~$1.04 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	3	2 mo	$1.04	24.49

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.04 · Σ g = 24.49

Measured error for this era×language (backtest): ±16 %

Ladder estimate · Deutsch · ~$1.09 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.0407 (Sprach-Faktor aus 92 Karten)	3	2 mo	$1.09	1.93

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.09 · Σ g = 1.93

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

Ladder estimate · Français · ~$1.84 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.4803 (Sprach-Faktor aus 56 Karten) · Set +30% nachgeführt	3	2 mo	$1.84	1.27

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.84 · Σ g = 1.27

Measured error for this era×language (backtest): ±25 %

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

Ladder estimate · Italiano · ~$1.00 gruen

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9607 (Sprach-Faktor aus 39 Karten)	3	2 mo	$1.00	2.32

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $1.00 · Σ g = 2.32

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

PSA Population

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

Recent sales · 1

2026-05-03

RAW UNKNOWN

Professor Turo's Scenario (Master ball) 121/131 Sv: Prismati

$3.13

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FAQ

Frequently asked questions

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.