Professor Cozmo's Discovery

Deoxys · 90/107 ·Uncommon

Illustration: Ken Sugimori →

Variant Reverse Holo · 90 $14.36

Japanese edition · 2004 Clash of the Blue Sky · 076 $4.09

Market price

$2.27

based on 7 sales

Price history · RAW

2025-12-22 · $0.95 $23.41 · 2026-10-01

Cross-market · RAW median per marketplace

Spread vs. cheapest market — before shipping/duty/fees

ebay.de	n=4	$2.35	+56%
ebay.es	n=12	$2.32	+55%
ebay.com	n=6	$1.81	+21%
ebay.co.uk	n=3	$1.50	—

Price per print

🇩🇪 Normal · DE n=3 $4.48

🇬🇧 Normal · EN n=18 $2.27

How is this value calculated?

Ladder estimate · English · ~$2.27 gelb

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe	7	3 mo	$2.26	57.14
eigene LP-Verkäufe ÷ 0.845	4	52 d	$2.78	1.84

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $2.27 · Σ g = 58.98

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

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

Ladder estimate · Deutsch · ~$2.23 rot

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 0.9854 (Sprach-Faktor aus 42 Karten)	7	3 mo	$2.23	2.33

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $2.23 · Σ g = 2.33

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

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

Ladder estimate · Français · ~$2.33 rot

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
en roh NM × 1.0288 (Sprach-Faktor aus 9 Karten)	7	3 mo	$2.33	5.84

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = $2.33 · Σ g = 5.84

Measured error for this era×language (backtest): ±2 %

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

PSA Population EN Σ 10

PSA 10

4 40%

PSA 9

3 30%

PSA 8

1 10%

PSA ≤7

2 20%

PSA · as of 2026-10-14

Recent sales · 25

2026-10-01	EN	RAW UNKNOWN	Professor Cozmo's Discovery 90/107 EX Deoxys Holo Uncommon T · eBay	$6.07
2026-09-30	EN	RAW LP	Professor Cozmo's Discovery 90/107 Uncommon Deoxys Pokemon L · eBay	$2.36
2026-07-28	EN	RAW UNKNOWN	Pokémon- Professor Cozmo's Discovery - Holo - Uncommon - Deo · eBay	$5.91
2026-07-26	EN	RAW NM	Professor Cozmo's Discovery 90/107 Uncommon Deoxys NM Pokemo · eBay	$2.33
2026-07-02	EN	RAW LP	Professor Cozmo's Discovery Uncommon Deoxys 90/107 LP · eBay	$2.37
2026-06-29	EN	RAW NM	Pokémon TCG Professor Cozmo's Discovery EX Deoxys 90/107 Reg · eBay	$2.09
2026-06-26	EN	RAW UNKNOWN	Pokemon Card Trainer Professor Cozmo's Discovery 90/107 2005 · eBay	$1.40
2026-06-18	EN	RAW NM	Professor Cozmo's Discovery 90/107 Uncommon Deoxys Pokemon N · eBay	$1.95
2026-06-16	EN	RAW MP	Pokémon Professor Cozmo's Discovery 90/107 - EX Deoxys MP	$1.39
2026-06-16	EN	RAW UNKNOWN	Pokémon TCG Professor Cozmo's Discovery EX Deoxys 90/107 Reg	$0.63
2026-06-15	EN	RAW LP	Professor Cozmo's Discovery - 90/107 - Uncommon LP EX Deoxys	$0.95
2026-06-12	EN	RAW NM	Professor Cozmo’s Discovery 90/107 NM Deoxys	$3.30
2026-06-11	EN	RAW UNKNOWN	Professor Cozmo's Discovery Uncommon Deoxys 90/107 casi nuev	$2.22
2026-06-03	EN	RAW UNKNOWN	Holograma inverso Professor Cozmo's Discovery poco común Deo	$23.41
2026-05-29	EN	RAW UNKNOWN	PROFESSOR COZMO'S DISCOVERY 90/107 UNCOMMON DEOXYS POKEMON	$1.91
2026-05-18	EN	RAW UNKNOWN	Pokémon TCG Professor Cozmo's Discovery EX Deoxys 90/107 Reg	$1.50
2026-05-15	EN	RAW NM	Professor Cozmo's Discovery - 90/107 - Uncommon NM EX Deoxys	$0.95
2026-05-02	EN	RAW NM	Pokémon TCG Professor Cozmo's Discovery EX Deoxys 90/107 Reg	$2.92
2026-05-02	EN	RAW MP	Professor Cozmo's Discovery 90/107 EX Deoxys Pokemon Tarjeta	$17.54
2026-04-27	EN	RAW UNKNOWN	Professor Cozmo's Discovery 90/107 EX Deoxys Uncommon Englis	$2.32

Frequently asked questions

What will I get for Professor Cozmo's Discovery Deoxys 90/107 if I want to sell quickly?

Half of all sales fell between $1.50 and $2.92, with a median of $2.22. Selling fast lands you nearer the lower end; with patience, good photos and a complete title the upper end is achievable.

Below which price is an offer for Professor Cozmo's Discovery Deoxys 90/107 unrealistic?

The cheapest genuine sales were around $0.95. Offers well below $0.57 are typically fakes, mislabelled cards or a different variant — ask for photos of all four borders and a close-up of the surface.

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.