Professor Cozmo's DiscoveryEX Trainer Kit 2 Plusle 10/12 price & value
$0.37
up +38%4 weeks · Thin market
Medium confidence
Medium confidence
How closely the price sources agree, and how often the card trades.
- 1 ungraded in the last 90 days, all conditions
- Fewer than 5 sales listed as near mint
Low liquidity28/100
Low liquidity
Few recent sales in this condition. Selling may take time and the price is less certain.
About 0.3 ungraded copies sell a month across all conditions, the pace of the last 90 days.
How we measure liquidity →Near mint · UltraBall Market Value · 1 ungraded sale in the last 90 days, all conditions · as of Nov 12, 2026
Graded: PSA 9 $12.05PSA 10 $59.76
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Prices updated Nov 12, 2026 · How we calculate the UltraBall Market Value
People ask about this card
- What is Professor Cozmo's Discovery 10/12 worth raw, in PSA 9 and in PSA 10?
- As of Nov 12, 2026, Professor Cozmo's Discovery 10/12 is about $0.37 ungraded near mint (1 sale in 90 days); PSA 9 about $12.05; PSA 10 about $59.76. Every grade’s price.
- Why do two copies of Professor Cozmo's Discovery 10/12 differ in price?
- As of Nov 12, 2026, there is one printing of Professor Cozmo's Discovery 10/12, so the gap is condition: near mint is $0.37. Too few played copies have sold to price each condition on its own. Recent sales.
Professor Cozmo's Discovery 10/12 price over time
- Recorded prices, joined day to day
Ungraded, 1 year: $1.34 on Nov 11, 2025, $0.37 on Nov 12, 2026. Lowest $0.23, highest $1.61.
- Now
- $0.37
- 4 weeks
- +38%
- 90 days
- +61%
- 1 year
- −72%
- Highest, 1Y
- $1.61
- Lowest, 1Y
- $0.23
Recorded history starts August 2022. Earlier history is monthly averages; from July 22, 2026 the line is a smoothed 7-day average of daily prices, so single-day swings don’t show. Between recorded prices, the line and its daily values are estimated from the prices either side.
Professor Cozmo's Discovery 10/12 price by month
Ungraded, at the end of each month, newest first: the line above read off at each month’s last day. The latest month ends on today’s UltraBall Market Value.
| Month | Ungraded | Change on month |
|---|---|---|
| November 2026to Nov 12, 2026 | $0.37 | up +28% |
| October 2026 | $0.29 | up +12% |
| September 2026 | $0.26 | up +13% |
| August 2026 | $0.23 | down −4.2% |
| July 2026 | $0.24 | – |
| May 2026 | $0.30 | down −32% |
| April 2026 | $0.44 | down −73% |
| March 2026 | $1.61 | up +303% |
| February 2026 | $0.40 | up +8.1% |
| January 2026 | $0.37 | down −62% |
| December 2025 | $0.98 | down −27% |
| November 2025 | $1.34 | up +9.8% |
Recent verified sales
RawProfessor Cozmo's Discovery 10/12 EX Trainer Kit 2 Plusle Pokemon Card - HPLikely best offer · asking price shownSep 18, 2026 · eBay · Sold as heavy play · View listing · Asking price, up to $1.32asking
RawProfessor Cozmo's Discovery 10/12 EX Trainer Kit 2 Plusle Pokemon MPLikely best offer · asking price shownAug 9, 2026 · eBay · Sold as moderate play · Buy It Now · View listing · Asking price, up to $1.79asking
Graded values
Professor Cozmo's Discovery 10/12 price by grade
| Grade | Market value | 4 wk | Sales/moSales a month | Last sale |
|---|---|---|---|---|
| UngradedHigh. How closely the price sources agree, and how often the card trades. | $0.37 | up +38% | 0.3Low liquidity. Low | –High. How closely the price sources agree, and how often the card trades. |
| PSA 10161.5× rawLimited. How closely the price sources agree, and how often the card trades. | $59.76 | down −0.1% | No recent sales | –Limited. How closely the price sources agree, and how often the card trades. |
| PSA 932.6× rawLimited. How closely the price sources agree, and how often the card trades. | $12.05 | down −11% | No recent sales | –Limited. How closely the price sources agree, and how often the card trades. |
Each graded row counts only that grade's sales; the ungraded row counts every condition. Sales a month is the 90-day pace. Last sale is the latest verified sale, never an asking price. How we calculate the UltraBall Market Value
Grade it with PSA?
Grade yours from photos →Change the costs, or add your own odds →- If it gets a PSA 10
- −$33.57
- If it gets a PSA 9
- −$74.96
- PSA fee for a PSA 10
- $59.99 Standard
- Slab sale price to break even
- $98.45at Standard, $59.99
- Grading pays, at today’s prices
- No priced grade
- Historical PSA 10 rate
- –
Against selling raw at $0.37, after the PSA fee for what the slab is worth (a 10 goes in at Standard, $59.99; a 9 at the same level), $25.00 shipping and insurance, and eBay US selling fees, as the selling calculator works them out, with its usual $5 postage and $1 packing on each sale: the same sum as the selling calculator. Each grade is charged the fee level its own slab price needs, so the break-even price carries the fee for a slab at that price, not the PSA 10 fee. These are outcomes if the card gets each grade, not the chance that it will. PSA has graded 1 copies; 1 got a 10.
PSA population
- PSA graded
- 1
- PSA 10
- 1
- PSA 9
- 0
- Historical PSA 10 rate
- –
- PSA 10s of all graded
Every PSA grade (1)
| Grade | Copies | Share |
|---|---|---|
| 10 | 1 | 100% |
PSA’s count of Oct 17, 2026. The rate is PSA 10s over every copy PSA has graded.
PSA’s count of Oct 17, 2026. PSA counts the cards it has graded, not every copy that exists. Compare with the low pop cards and the hardest PSA 10s.
PSA 10 price against PSA’s population
The same 11 weeks, Jul 24, 2026 to Sep 28, 2026: the price on the day of each weekly PSA report, and the report’s counts. Side by side, not cause and effect.
Left: PSA 10 price, US$. Right: PSA graded copies.
About this card
Professor Cozmo's Discovery is card 10 of 12 in the EX Trainer Kit 2 Plusle price guide, a set released in March 2006 during the EX era. Its rarity is Common. The artwork is by Ken Sugimori. In the checklist it sits after Potion 9/12 and before Lightning Energy 11/12.
It is the 11th most valuable of the 12 priced cards in EX Trainer Kit 2 Plusle, behind Plusle 6/12 (see the most valuable EX Trainer Kit 2 Plusle cards).
What the data says
Only 1 ungraded copy sold in the last 90 days, too few to check the value against.
Ungraded copies are cheap, but graded ones are not: a PSA 10 is valued at $59.76.
From prices of Nov 12, 2026 and sales to Sep 18, 2026. Observations, not advice or a forecast. How we read the market
Market snapshot
How each figure is worked out- 4 weeks
- +38%ungraded, between 7-day averages
- 90 days
- +61%ungraded, between 7-day averages
- 1 year
- −72%ungraded; before Jul 22, 2026 from monthly averages
- Direction
- Thin marketunder 9 ungraded sales in 90 days: one sale can move the line
- High since daily tracking
- At the high$0.37 on Nov 9, 2026, 7-day average; daily prices since Jul 22, 2026
- Liquidity
- Low0.3 ungraded sales a month over 90 days
- Price confidence
- Medium confidenceSome recent sales, or sales that vary more than usual.
- Ungraded sold
- 0in 30 days; 1 in 90
- PSA 10 population
- 1of 1 PSA graded, count of Oct 17, 2026
- Number
- 10/12
- Rarity
- Common
- Released
- Mar 1, 2006
- Era
- EX
- Illustrator
- Ken Sugimori
- Printings
- Non-holo
Cite this price
Professor Cozmo's Discovery 10/12 (EX Trainer Kit 2 Plusle) is worth $0.37 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/ex-trainer-kit-2-plusle/professor-cozmos-discovery-10).
Professor Cozmo's Discovery 10/12 (EX Trainer Kit 2 Plusle) is worth $0.37 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/ex-trainer-kit-2-plusle/professor-cozmos-discovery-10).
https://ultraball.com/cards/ex-trainer-kit-2-plusle/professor-cozmos-discovery-10
<a href="https://ultraball.com/cards/ex-trainer-kit-2-plusle/professor-cozmos-discovery-10">Professor Cozmo's Discovery 10/12 (EX Trainer Kit 2 Plusle) price: $0.37 on UltraBall</a>
Nearby in EX Trainer Kit 2 Plusle
Chase cards from this set
More cards by Ken Sugimori
Chase cards from the rest of the era
Questions collectors ask
As of Nov 12, 2026, Professor Cozmo's Discovery 10/12 EX Trainer Kit 2 Plusle is worth about $0.37 ungraded. A PSA 10 copy is worth about $59.76. How we price cards.
