How much is a PSA 10 Brock's Onix 21/132 worth?

A PSA 10 Brock's Onix 21/132 Gym Heroes is worth about $238; PSA 9 about $17.50, PSA 8 about $11.00, PSA 7 about $7.75. That is about 24× the ungraded value.

How often does Brock's Onix 21/132 sell?

Brock's Onix 21/132 Gym Heroes recorded 129 sales across every grade in the last 90 days (42 in the last 30), most recently on Nov 10, 2026. The highest recent sale was $238 for a PSA 10 copy on Sep 25, 2026.

What is the most valuable card in Gym Heroes?

The most valuable card in Gym Heroes is Sabrina's Gengar 14/132, at about $442 ungraded. Brock's Onix 21/132 ranks 36th of 132.

What set is Brock's Onix 21/132 from?

Brock's Onix 21/132 is from the English Pokémon TCG set Gym Heroes, released Aug 14, 2000, in the Wizards of the Coast era. Its rarity is Rare.

What is Brock's Onix 21/132 worth raw, in PSA 9 and in PSA 10?

As of Nov 12, 2026, Brock's Onix 21/132 is about $9.97 ungraded near mint (123 sales in 90 days); PSA 9 about $17.50 (2 sales); PSA 10 about $238 (5 sales).

Which printing of Brock's Onix 21/132 is this, and why do two copies differ in price?

Brock's Onix 21/132 comes in 2 printings: Unlimited $9.97 ungraded, 1st Edition $17.60 ungraded. 1st Edition or Unlimited: the only difference is the black “Edition 1” stamp below the bottom-left corner of the picture; the artwork, number and text are the same.

UnlimitedRare2000Wizards of the Coast era

Brock's OnixGym Heroes 21/132 price & value

Name: Brock's Onix 21/132 Gym Heroes
Brand: Pokémon
SKU: gym1-21

Printing: UnlimitedOther printings: 1st Edition $17.60 ungraded

Brock's Onix 21/132, Gym Heroes Pokémon card — Press the card to zoom in

UltraBall Market ValueUngraded

$9.97

down −25%4 weeks · Falling

Medium confidence

Some recent sales, or sales that vary more than usual.

123 ungraded in the last 90 days, all conditions
52 sales on record listed as near mint
Typical sales within ±82% of the figure
Last sale Nov 10, 2026

How we calculate the UltraBall Market Value →

High liquidity85/100

High liquidity

Trades often, at prices that agree. It counts sales, not how long a listing takes to sell.

About 41 ungraded copies sell a month across all conditions, the pace of the last 90 days.

How we measure liquidity →

Near mint · UltraBall Market Value · 123 ungraded sales in the last 90 days, all conditions · as of Nov 12, 2026

Graded: PSA 9 $17.50PSA 10 $238

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eBay links on this page are affiliate links: we earn a commission if you buy, at no extra cost to you. It never changes our prices or which listings we show.

Prices updated Nov 12, 2026 · How we calculate the UltraBall Market Value

People ask about this card

What is Brock's Onix 21/132 worth raw, in PSA 9 and in PSA 10?: As of Nov 12, 2026, Brock's Onix 21/132 is about $9.97 ungraded near mint (123 sales in 90 days); PSA 9 about $17.50 (2 sales); PSA 10 about $238 (5 sales). Every grade’s price.
Which printing of Brock's Onix 21/132 is this, and why do two copies differ in price?: Brock's Onix 21/132 comes in 2 printings: Unlimited $9.97 ungraded, 1st Edition $17.60 ungraded. 1st Edition or Unlimited: the only difference is the black “Edition 1” stamp below the bottom-left corner of the picture; the artwork, number and text are the same. Printings compared.

Price history

Brock's Onix 21/132 price over time

Nov 11Feb 11May 13Aug 13Nov 12

Recorded prices, joined day to day

Ungraded, 1 year: $9.06 on Nov 11, 2025, $9.97 on Nov 12, 2026. Lowest $8.35, highest $13.67.

Now: $9.97
4 weeks: −25%
90 days: −7.1%
1 year: +10%
Highest, 1Y: $13.67
Lowest, 1Y: $8.35

Recorded history starts January 2021. 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.

Brock's Onix 21/132 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	$9.97	down −6.6%
October 2026	$10.68	down −1.1%
September 2026	$10.80	down −1.1%
August 2026	$10.92	up +6.3%
July 2026	$10.27	–
May 2026	$10.27	up +23%
April 2026	$8.35	down −20%
March 2026	$10.45	up +15%
February 2026	$9.10	up +1.3%
January 2026	$8.98	down −4.1%
December 2025	$9.37	up +3.4%
November 2025	$9.06	up +26%

Matched to this exact card

Recent verified sales

Latest 40

RawPokemon Brock's Onix 21/132 Gym Heroes Rare Unlimited WOTC 2000Nov 10, 2026 · eBay · Condition not stated · View listing · $9.95
RawWizards of the Coast Brock's Onix 21/132 Gym Heroes 2000 Rare 70 HP, EngNov 9, 2026 · eBay · Condition not stated · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $12.35asking
RawPokémon TCG Brock's Onix 21/132 Common Englisch Gym Heroes 70 KP 1999Unusual priceNov 8, 2026 · eBay · Condition not stated · View listing · $2.28
RawPokemon Brock's Onix 21/132 Gym Heroes Rare Unlimited WOTC 2000 LP-NMUnusual priceNov 8, 2026 · eBay · Sold as light play · Auction · View listing · $3.25
RawBrock's Onix 021/132 Gym Heroes RegularUnusual priceNov 7, 2026 · eBay · Condition not stated · View listing · $3.00
RawBrock's Onix - 21/132 Gym Heroes - Pokémon TCG - 2000Nov 6, 2026 · eBay · Sold as moderate play · Buy It Now · View listing · $12.99
RawPokémon TCG Brock's Onix Gym Heroes 21/132 RegularNov 5, 2026 · eBay · Sold as near mint · Auction · View listing · $11.44
RawPokémon TCG Brock's Onix 21/132 Rare Gym Heroes Unlimited Lightly PlayedNov 5, 2026 · eBay · Sold as light play · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $6.00asking
CGC 7.52000 Pokémon Gym Heroes #21 Brock's Onix NM+ CGC 7.5Nov 5, 2026 · eBay · Auction · View listing · $6.50
PSA 6PSA 6 2000 Pokemon Gym Heroes Brock's Onix 21/132 Unlimited Regular RareOct 14, 2026 · eBay · Offers taken (asking price; paid may be lower) · View listing · Asking price, up to $8.00asking
CGC 8.52000 Pokemon Gym Heroes Brock's Onix #21 CGC 8.5 NM-MT+Oct 6, 2026 · Fanatics Collect · View listing · $11.00
PSA 10PSA 10 Brock's Onix Gym Heroes 21/132 Unlimited Pokemon Card GEM MINT POP 22Sep 25, 2026 · eBay · Best offer accepted · View listing · $238
CGC 8.52000 Pokemon Gym Heroes Brock's Onix #21 CGC 8.5 NM-MT+Sep 21, 2026 · Fanatics Collect · View listing · $8.40
PSA 10Sold via eBay · PSA cert #98364294Jul 4, 2026 · eBay · Best offer accepted · View listing$387
PSA 10Sold via eBay · PSA cert #49979233Mar 15, 2026 · eBay · Auction · View listing$405
PSA 10PSA 10 Brock's Onix Gym Heroes 21/132 Unlimited Pokemon Card GEM MINTMar 14, 2026 · eBay · View listing · $133
PSA 102000 Pokémon Gym Heroes Brock's Onix #21 PSA 10 Vintage WOTCJan 6, 2026 · eBay · View listing · $122
PSA 9Sold via eBay · PSA cert #102241861Jul 25, 2025 · eBay · Best offer accepted · View listing$17.50
PSA 9Sold via eBay · PSA cert #99346635Jun 27, 2025 · eBay · Buy It Now · View listing$24.99
PSA 10Sold via eBay · PSA cert #97452118Unusual priceMay 23, 2025 · eBay · Best offer accepted · View listing$75.00
PSA 9Sold via eBay · PSA cert #104149398Mar 31, 2025 · eBay · Auction · View listing$14.99
PSA 102000 Pokemon Gym Heroes Brock's Onix #21 PSA 10Jan 26, 2025 · eBay · View listing · $80.00
PSA 9Sold via eBay · PSA cert #94987697Sep 26, 2024 · eBay · Auction · View listing$11.50
PSA 9Sold via eBay · PSA cert #58550192Dec 17, 2023 · eBay · Auction · View listing$18.00
PSA 9Sold via eBay · PSA cert #59471944Jun 25, 2023 · eBay · Auction · View listing$8.50
PSA 9Sold via eBay · PSA cert #60620476Unusual priceFeb 20, 2023 · eBay · Auction · View listing$4.82
PSA 9Sold via eBay · PSA cert #54300190Jan 21, 2022 · eBay · Auction · View listing$15.50
PSA 10Sold via eBay · PSA cert #54245024Unusual priceJan 2, 2022 · eBay · Auction · View listing$37.00

Every sale here was matched to this exact card: the right number, set, printing and language, one card per listing, raw kept apart from graded. Where a venue sells by card and gives no listing title to check, the row says the venue named the card. Listings we can’t be sure of are left out. A price marked ≤ is an asking price, not a confirmed sale. On an accepted best offer we show what the buyer paid, not the asking price; where that isn’t on record the asking price is shown as a ceiling and never counts towards the price. A sale marked unusual is far from that grade’s market price: it stays on the record, and is left out of this page’s latest-sale and comparison figures. Sales record updated Nov 11, 2026.

Graded values

Brock's Onix 21/132 price by grade

Brock's Onix 21/132: market price, 4-week change, sales pace and last sale by grade
Grade	Market value	4 wk	Sales/moSales a month	Last sale
UngradedMedium. Some recent sales, or sales that vary more than usual.	$9.97Last $9.95 · Nov 10, 2026	down −25%	41High liquidity. High	$9.95Nov 10, 2026Medium. Some recent sales, or sales that vary more than usual.
PSA 1023.9× rawMedium. Some recent sales, or sales that vary more than usual.	$238Last $238 · Sep 25, 2026	0.0%	0.3Low liquidity. Low	$238Sep 25, 2026Medium. Some recent sales, or sales that vary more than usual.
PSA 91.8× rawLow. Few recent sales in this condition. Treat the figure as a rough guide.	$17.50	0.0%	No recent sales	–Low. Few recent sales in this condition. Treat the figure as a rough guide.
PSA 8Limited. How closely the price sources agree, and how often the card trades.	$11.00Last $10.50 · Apr 8, 2026	down −1.2%	No recent sales	$10.50Apr 8, 2026Limited. How closely the price sources agree, and how often the card trades.
PSA 7Limited. How closely the price sources agree, and how often the card trades.	$7.75	down −9.5%	No recent sales	–Limited. How closely the price sources agree, and how often the card trades.
BGS 1031.1× rawLimited. How closely the price sources agree, and how often the card trades.	$310	–	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: +$113
If it gets a PSA 9: −$78.56
PSA fee for a PSA 10: $59.99 Standard
Slab sale price to break even: $108at Standard, $59.99
Grading pays, at today’s prices: PSA 10 only
Historical PSA 10 rate: 17%

Against selling raw at $9.97, 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 126 copies; 22 got a 10.

Population

PSA graded: 126
PSA 10: 22
PSA 9: 44
Historical PSA 10 rate: 17%; PSA 10s of all graded

A higher historical PSA 10 rate than 75% of the Gym Heroes cards PSA has graded enough of.

Grader	Graded	10s	9s	10s share
PSA	126	22	44	17%
CGC	95	6	21	6.3%
BGS	3	0	1	–
SGC	2	0	1	–

PSA graded: 126
10s: 22
10s share: 17%
Historical PSA 10 rate: 17%

Every PSA grade (6)

PSA population by grade
Grade	Copies	Share
10	22	17%
9	44	35%
8	35	28%
7	14	11%
6	4	3.2%
5	7	5.6%

PSA’s count of Oct 13, 2026. The rate is PSA 10s over every copy PSA has graded.

CGC graded: 95
10s: 6
10s share: 6.3%
Historical CGC gem rate: 6.3%; Gem: 10s, Pristine and Perfect 10s

Every CGC grade (11)

CGC population by grade
Grade	Copies	Share
10	6	6.3%
9.5	1	1.1%
9	21	22%
8.5	25	26%
8	12	13%
7.5	4	4.2%
7	6	6.3%
6.5	7	7.4%
6	3	3.2%
5.5	6	6.3%
Authentic	4	4.2%

CGC’s count of Nov 10, 2026. 10s share counts every 10 label; CGC’s own gem is 10s, Pristine and Perfect 10s.

Beckett graded: 3
10s: 0
10s share: –
Historical Beckett gem rate: –; Gem: 9.5s, Pristine and Black Label 10s

Every Beckett grade (3)

Beckett population by grade
Grade	Copies	Share
9.5	1	33%
9	1	33%
8	1	33%

Beckett’s count of Nov 10, 2026. 10s share counts every 10 label; Beckett’s own gem is 9.5s, Pristine and Black Label 10s.

SGC graded: 2
10s: 0
10s share: –
Historical SGC gem rate: –; Gem: 10s and Pristine 10s

Every SGC grade (2)

SGC population by grade
Grade	Copies	Share
9	1	50%
8	1	50%

SGC’s count of Nov 10, 2026. 10s share counts every 10 label; SGC’s own gem is 10s and Pristine 10s.

PSA’s count of Oct 13, 2026. CGC, BGS and SGC as of Nov 10, 2026; their 10s include Pristine, Perfect and Black Label 10s. 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 12 weeks, Jul 24, 2026 to Oct 19, 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

About this card

This page prices the Unlimited print. A 1st Edition Brock's Onix sells for about $17.60 ungraded.

Brock's Onix is card 21 of 132 in the Gym Heroes price guide, a set released in August 2000 during the Wizards of the Coast era. Its rarity is Rare. The artwork is by Benimaru Itoh. In the checklist it sits after Brock's Golem 20/132 and before Brock's Rhyhorn 22/132.

It is the 36th most valuable of the 132 priced cards in Gym Heroes, behind Sabrina's Gengar 14/132 (see the most valuable Gym Heroes cards).

It is one of 31 English Onix cards, and ranks 2nd among them by ungraded value; the most valuable is Onix from Southern Islands. Compare them all in the most valuable Onix cards.

What the data says

The ungraded value is down 25% over four weeks on 7-day averages, with 40 ungraded sales in the last 30 days.

A PSA 10 is valued at 24× the ungraded price ($238 against $9.97), and a PSA 9 at $17.50.

PSA has graded 126 copies, 22 of them PSA 10 (17%). That describes the copies sent in, not the chance a given card grades 10.

From prices of Nov 12, 2026 and sales to Nov 10, 2026. Observations, not advice or a forecast. How we read the market

Market snapshot

How each figure is worked out

4 weeks: −25%ungraded, between 7-day averages
90 days: −7.1%ungraded, between 7-day averages
1 year: +10%ungraded; before Jul 22, 2026 from monthly averages
Direction: Fallingthe ungraded 7-day average is down 10% or more on four weeks ago
High since daily tracking: 31% under$14.55 on Oct 17, 2026, 7-day average; daily prices since Jul 22, 2026
Liquidity: High41 ungraded sales a month over 90 days
Price confidence: Medium confidenceSome recent sales, or sales that vary more than usual.
Ungraded sold: 40in 30 days; 123 in 90
PSA 10 premium: 23.9×the ungraded price; the typical Gym Heroes card with a PSA 10 price: 23×
PSA 10 population: 22of 126 PSA graded, count of Oct 13, 2026

No money needed: buy it with virtual UltraCash in the fantasy game, or call today’s card.

Printings compared

Unlimited · this pageNo 1st Edition stamp beside the art box. This is the common print.$9.97 ungraded
1st EditionA black “Edition 1” stamp to the lower left of the art box.$17.60 ungraded

1st Edition or Unlimited: the only difference is the black “Edition 1” stamp below the bottom-left corner of the picture; the artwork, number and text are the same.

Card details

Set: Gym Heroes
Number: 21/132
Set code: G1
Rarity: Rare
Released: Aug 14, 2000
Era: Wizards of the Coast
Pokémon: Onix
Pokédex no.: #0095
Illustrator: Benimaru Itoh
Printings: Unlimited, 1st Edition
Character: All Brock cards

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Cite this price

Brock's Onix 21/132 (Gym Heroes) is worth $9.97 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/gym-heroes/brocks-onix-21).

Citation

Brock's Onix 21/132 (Gym Heroes) is worth $9.97 ungraded as of Nov 12, 2026, according to UltraBall's Market Value (https://ultraball.com/cards/gym-heroes/brocks-onix-21).

Link

https://ultraball.com/cards/gym-heroes/brocks-onix-21

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<a href="https://ultraball.com/cards/gym-heroes/brocks-onix-21">Brock's Onix 21/132 (Gym Heroes) price: $9.97 on UltraBall</a>

Same Pokémon

Most valuable Onix cards

All 31

Next in the binder

Nearby in Gym Heroes

Full checklist

Gym Heroes

Other Onix cards in this set

Brock's Onix
Gym Heroes · 69/132
$1.47PSA 10 $199