| Set | Gym Heroes |
| Card number | 21 |
| Rarity | rare |
| Type | Pokémon |
| HP | 70 |
| Artist | Benimaru Itoh |
| Released | Aug 2000 |
Brock's Onix #21 Value (Gym Heroes)
Pokemon card price guide: raw and graded values, eBay sold prices and price history. Updated Jul 29, 2026.
Brock's Onix from Gym Heroes is a rare card notable for its unique artwork by Benimaru Itoh. Its value is driven by its rarity and significance within the Pokémon trading card game. This card is considered a key piece for collectors of the Gym Heroes set.
Current prices
| Source | Price |
|---|---|
| Cardmarket lowest near mint (EUR) | €10.00 |
| Cardmarket 7-day average (EUR) | €9.38 |
| Cardmarket 30-day average (EUR) | €7.94 |
| Cardmarket listings available | 72 |
| eBay PSA 10 median (USD) | $301.63 |
Buy / compare: TCGplayer · eBay sold · Cardmarket
Graded card values (PSA, CGC, BGS)
| Grading | Grade | Median sold | Sales |
|---|---|---|---|
| CGC | 9 | $26.58 | 1 |
| PSA | 10 | $301.63 | 3 |
| PSA | 9 | $82.58 | 2 |
| PSA | 8 | $36.80 | 2 |
| PSA | 7 | $18.75 | 2 |
| SGC | 9 | $30.12 | 1 |
Graded values are medians of real eBay sold listings.
Brock's Onix price history
Price has been stable near $11.38 across the 3 days we have on record.
Frequently asked questions
How much is Brock's Onix #21 worth?
How much is Brock's Onix #21 worth? As of Jul 29, 2026, a raw near mint copy is worth about $11.38, a PSA 10 sells for around $301.63 on eBay, the Cardmarket low is €10.00. Prices update daily from Cardmarket, TCGplayer and eBay sold listings.
What is Brock's Onix #21 worth?
How much is Brock's Onix #21 worth? As of Jul 29, 2026, a raw near mint copy is worth about $11.38, a PSA 10 sells for around $301.63 on eBay, the Cardmarket low is €10.00. Prices update daily from Cardmarket, TCGplayer and eBay sold listings.
What is a PSA 10 Brock's Onix #21 worth?
As of Jul 29, 2026, a PSA 10 Brock's Onix #21 sells for about $301.63 on eBay (median of recent graded sales), compared with about $11.38 for a raw near mint copy.
How can I identify Brock's Onix #21 with my phone?
Download the free TCGApp.io app (Card Value Scanner) on iPhone, point the camera at the card, and it matches Brock's Onix #21 from Gym Heroes in seconds, then shows live prices, PSA graded values and eBay sold comps.
How do I track the value of Brock's Onix #21 in a collection?
Add Brock's Onix #21 to your collection in the TCGApp.io app to see portfolio value, profit and loss, price history and alerts when the card moves. You can also export CSV/JSON and add a Home Screen widget.
What should I consider when buying Brock's Onix?
When purchasing Brock's Onix, consider the card's condition and whether it has been graded. High-grade cards tend to hold value better and are more sought after.
Is it worth grading Brock's Onix?
Yes, grading Brock's Onix can enhance its market value significantly. The difference between raw and graded prices can be substantial, making it a logical choice for collectors.
What makes Brock's Onix valuable or notable?
Brock's Onix is valuable due to its rarity, unique artwork, and its place in the Gym Heroes set. Cards from this era are often sought after by collectors for their nostalgia and historical significance.
Most valuable cards in Gym Heroes
Gym Heroes card list · All Pokemon sets · Most valuable Pokemon cards
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