Professor Cozmo's Discovery · Reverse Holo

Deoxys · 90/107 ·Uncommon

Illustration: Ken Sugimori →

As of 2026-10-20

Variant Normal · 90 £1.84

Japanese edition · 2004 Clash of the Blue Sky · 076 £3.07

Market price

£10.67

based on 3 sales

Price history · RAW

2026-04-01 · £1.75 £36.30 · 2026-10-20

Cross-market · RAW median per marketplace

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

ebay.es	n=9	£8.79	+22%
ebay.com	n=6	£7.61	+6%
ebay.de	n=8	£7.19	—

How is this value calculated?

Ladder estimate · English · ~£10.67 gelb reverse_holo

Evidence path	Sales	Age	Value vᵢ	Weight gᵢ
eigene rohe NM-Verkäufe · Set +15% nachgeführt	2	5 mo	£10.28	16.33
eigene LP-Verkäufe ÷ 0.689	4	25 d	£16.89	2.3
eigene PSA9-Verkäufe ÷ 7.9423 · Set +15% nachgeführt	2	4 mo	£6.98	1.09

value = exp( Σ gᵢ·ln vᵢ ⁄ Σ gᵢ ) = £10.67 · Σ g = 19.72

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

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

PSA Population EN Σ 44

PSA 10

3 7%

PSA 9

29 66%

PSA 8

7 16%

PSA ≤7

5 11%

PSA · as of 2026-10-14

Recent sales · 27

2026-10-20	EN	RAW NM	Professor Cozmo's Discovery 90/107 EX Deoxys Reverse Holo St · eBay	£10.73
2026-10-14	EN	RAW LP	Professor Cozmo's Discovery 90/107 Reverse Holo Stamped Unco · eBay	£11.72
2026-10-05	EN	RAW UNKNOWN	Professor Cozmo's Discovery 90/107 Deoxys Reverse Holo Pokem · eBay	£8.93
2026-10-01	EN	RAW UNKNOWN	Professor Cozmo's Discovery Uncommon EX Deoxys 90/107 Suppor · eBay	£6.25
2026-10-01	EN	RAW UNKNOWN	Professor Cozmo's Discovery Uncommon EX Deoxys 90/107 Suppor · eBay	£3.57
2026-07-22	EN	PSA 8	2005 POKEMON EX DEOXYS #90 PROFESSOR COZMO'S DISCOVERY-REVER · eBay	£12.14
2026-07-21	EN	RAW MP	Nintendo Pokémon TCG Professor Cozmo's Discovery 90/107 Deox · eBay	£0.75
2026-07-21	EN	RAW UNKNOWN	Pokemon TCG Professor Cozmo's Discovery 90/107 EX Deoxys Rev · eBay	£11.84
2026-07-20	EN	RAW LP	Professor Cozmo's Discovery 90/107 Uncommon Deoxys Pokemon R · eBay	£8.13
2026-07-19	EN	RAW UNKNOWN	Professor Cozmo's Discovery 90/107 Reverse Holo Uncommon Deo · eBay	£3.52
2026-07-15	EN	RAW LP	Professor Cozmo's Discovery 90/107 RS Deoxys Reverse Holo Po · eBay	£17.83
2026-07-05	EN	RAW UNKNOWN	Professor Cozmo's Discovery 90/107 Deoxys Reverse Holo Uncom · eBay	£5.14
2026-06-23	EN	PSA 9	Pokemon Professor Cozmo's Discovery EX Deoxys Reverse Holo #	£48.41
2026-06-15	EN	RAW DMG	Professor Cozmo's Discovery 90/107 Deoxys Reverse Holo Pokem	£1.75
2026-06-14	EN	RAW UNKNOWN	Pokémon TCG Professor Cozmo’s Discovery Ex Deoxys Reverse Ho	£7.04
2026-06-13	EN	PSA 9	Pokemon Card Professor Cozmo's Discovery 90/107 Rev Holo EX	£54.59
2026-05-25	EN	RAW HP	Heavily Played Professor Cozmo's Discovery - 90/107 - Uncomm	£3.65
2026-05-22	EN	RAW UNKNOWN	2005 Pokemon PROFESSOR COZMOS DISCOVERY Ex Deoxys REVERSE HO	£36.30
2026-05-21	EN	RAW UNKNOWN	Professor Cozmo's Discovery 90/107 Deoxys Reverse Holo Pokem	£8.79
2026-05-01	EN	RAW NM	Pokémon TCG Professor Cozmo's Discovery 90/107 Reverse Holo	£8.79

Frequently asked questions

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

Half of all sales fell between £5.14 and £8.93, with a median of £8.79. 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 · Reverse Holo Deoxys 90/107 unrealistic?

The cheapest genuine sales were around £3.52. Offers well below £2.11 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.