Professor Cozmo's Discovery #90
🔥 Hot MoveProfessor Cozmo's Discovery is card #90 from Deoxys, a Uncommon Trainer card currently trading near $19.19 for its Reverse Holofoil printing.
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By CardLedger Research · Market data updated · Prices from TCGplayer & Cardmarket
Net estimates use each marketplace's default seller tier and typical shipping — fees vary by category, account status and payment method, so confirm current rates before selling.
Demand for Professor Cozmo's Discovery #90 rose this week. If you're cashing out, this is a strong window; holders can wait for more upside.
Professor Cozmo's Discovery at a glance
- Recent averages: €0.57 (7d), €0.48 (30d).
- From Deoxys (EX), released 2005.
- Rarity tier — Uncommon.
- Trades around $19.19 on TCGplayer.
- Cardmarket values it at €0.64 (EUR).
Professor Cozmo's Discovery price by printing
Live TCGplayer and Cardmarket values for Professor Cozmo's Discovery #90.
TCGplayer prices, updated 2026/10/26.
- Low
- $5.00
- Mid
- $11.74
- High
- —
- Low
- $0.12
- Mid
- $0.50
- High
- —
Cardmarket pricing (EUR)
Cardmarket data updated 2026/10/26.
Verify the card image and live listings on TCGplayer, Cardmarket or eBay.
Is this Professor Cozmo's Discovery a good deal?
Put any asking price against today's live market value for Professor Cozmo's Discovery #90.
Enter what a seller is asking for Professor Cozmo's Discovery #90. We compare it to today's live market value.
About Professor Cozmo's Discovery #90
Deoxys placed Professor Cozmo's Discovery at #90; the Trainer card entered the market in 2005 within the EX series. As a Trainer card (Supporter), it is a staple for deck builders and set collectors alike.
Artwork is by Ken Sugimori; the Reverse Holofoil printing sits around $19.19, spanning $5.00–— between the cheapest and priciest listings.
Card facts
- Set
- Deoxys
- Series
- EX
- Number
- #90 / 107
- Rarity
- Uncommon
- Illustrator
- Ken Sugimori
- Subtype
- Supporter
- Released
- 2005/02/01
Professor Cozmo's Discovery attacks, abilities & battle stats
Printed card text and battle statistics for Professor Cozmo's Discovery #90 — the playability layer behind the price.
Battle stats
- Retreat cost
- —
- Attacks
- —
Professor Cozmo's Discovery price analysis
What drives the current market value of Professor Cozmo's Discovery #90.
There are 2 tracked printings here — Reverse Holofoil at $19.19, Normal at $0.56.
At $19.19 there is enough headroom for both flipping and collecting; compare the low and high ends before committing.
In the $19.19 band, condition and variant selection create meaningful price differences.
On Cardmarket (EUR) the card trends at €0.64, with an average sold price of €0.59 and a lowest near-mint ask of €0.02.
Professor Cozmo's Discovery price history & movement
Momentum reads heating up — a 7-day average of €0.57 against a 30-day average of €0.48 (+18.8%).
The most recent 24-hour average is €0.65, and Cardmarket's trend price sits at €0.64.
Professor Cozmo's Discovery has been tracked here for 4 days, ranging from $16.82 to $19.19; the latest value sits at 100% of that recorded range — at the high end of the band.
Day to day the price swings by roughly 6.6% (standard deviation); the deepest recorded drawdown is 0%.
Cardmarket averages
Price fingerprint
Built from CardLedger's own daily snapshots · 4 days tracked · latest
Real recorded values from our daily TCGplayer snapshots — not estimates or back-filled history. Methodology
How much would you net selling Professor Cozmo's Discovery?
Model the real take-home on a [object Object] sale across eBay, TCGplayer, Cardmarket and direct — fees and shipping included.
Selling Professor Cozmo's Discovery at $19.19 nets roughly $16.35 on eBay, $16.44 on TCGplayer, $17.88 via Cardmarket, $16.80 on Whatnot or $19.19 direct — the platform you pick is worth up to $2.84.
With this much value in the fee gap, platform choice materially changes your return. Model your exact shipping in the tool below.
Your sale
Pre-filled with the current TCGplayer market for Professor Cozmo's Discovery #90.
Modelled on each marketplace's default seller tier with your shipping input. Net payout = sale price − selling fees − outbound shipping. Fee figures are estimates (last reviewed October 15, 2026) and vary by category, account status and payment method — confirm current rates with the marketplace. Open the full seller fee calculator to model account tiers and buyer-paid shipping.
Should you grade Professor Cozmo's Discovery?
Model the break-even and PSA 9 vs PSA 10 profit on grading Professor Cozmo's Discovery #90 against today's raw market value.
Grading plan
Pre-filled with the live market value for Professor Cozmo's Discovery #90.
Both-way postage plus declared-value insurance.
Estimated graded values below are a transparent starting point based on the raw price band — edit them with real graded comps before deciding.
At $19.19 raw and $40.00 all-in grading cost, a PSA 10 nets — versus selling raw, a PSA 9 nets —. You need a graded sale of $65.17 to break even on grading.
At your stated grade odds the expected profit is — (-31.2% return on cost basis).
Grading costs, turnaround and grade outcomes vary by service and card. The estimated PSA 9 and PSA 10 values are heuristics, not predictions — always sanity-check against recent graded sold listings before committing. This is a modelling tool, not financial advice.
Professor Cozmo's Discovery within Deoxys
Professor Cozmo's Discovery ranks #92 of 106 tracked Deoxys cards by market value, against a set median of $40.73.
It sits in the top 14% of the checklist on price.
The set's top card is Latios Star (#106), valued at $1,500.00.
What makes Professor Cozmo's Discovery valuable
- Professor Cozmo's Discovery is a Trainer, so its value leans on deck utility and set builders.
- Professor Cozmo's Discovery comes from the classic era (2005), giving it a stable collector base with no new printings.
- Uncommon is a common-to-mid rarity, so value depends more on condition, variant and playability than on scarcity alone.
- Ken Sugimori illustrated this card, which adds appeal for artist-focused collectors.
- steady supply at this price keeps the card accessible to new collectors.
Buying & selling Professor Cozmo's Discovery
- Check sold listings rather than asking prices — the Reverse Holofoil market of $19.19 reflects actual transactions on TCGplayer.
- If you are buying to resell, model marketplace fees first — the $19.19 value is pre-fee, and the seller-fee calculator shows the net take-home per platform.
- Because it is a Trainer card, Professor Cozmo's Discovery has both collector and player demand — a broader buyer pool than purely collectible cards.
- Centring and surface condition matter most on Uncommon cards; a clean copy of Professor Cozmo's Discovery can realise well above the $5.00 low end.
- For Professor Cozmo's Discovery, confirm the exact print variant before buying: Reverse Holofoil, Normal prices differ, and listings often mix them.
Professor Cozmo's Discovery value questions
What is Professor Cozmo's Discovery #90 worth?
Professor Cozmo's Discovery trades near $19.19 on TCGplayer (Reverse Holofoil), ranging $5.00–—; Cardmarket shows €0.64.
Should I buy Professor Cozmo's Discovery?
As a classic-era Uncommon card it is trending up in the short term (18.8% on the 7-day vs 30-day average). Finite supply supports long-term value.
How rare is Professor Cozmo's Discovery?
Professor Cozmo's Discovery is a Uncommon card from Deoxys (EX series, 2005). It sits in a common-to-mid rarity tier, so condition and variant matter more than raw scarcity.
Which versions of Professor Cozmo's Discovery are there?
TCGplayer tracks 2 printings: Reverse Holofoil ($19.19), Normal ($0.56). Prices differ between variants, so always confirm which one you own or are buying.
Where is Professor Cozmo's Discovery sold?
The main marketplaces are TCGplayer (USD), Cardmarket (EUR) and eBay. Current TCGplayer market is $19.19. When selling, compare net proceeds after fees — eBay and TCGplayer typically charge 9–13%, while direct sales carry lower or no fees.
Why does Professor Cozmo's Discovery cost what it does?
Four factors dominate: the Uncommon rarity tier, the classic-era EX set pedigree, playability (Trainer), and condition. Artwork by Ken Sugimori also matters to collector demand.
Other Professor Cozmo's Discovery cards
Professor Cozmo's Discovery appears in multiple sets — compare market values.
