Gym Heroes · Gym · Released Aug 14, 2000
$17.13
Market price · Raw NM · 1st Ed Normal · as of Oct 12, 2026
Attacks
Bind
20
Fighting, Fighting · Flip a coin. If heads, the Defending Pokémon is now Paralyzed.
Tunneling
Fighting, Fighting, Fighting · If your opponent has any Benched Pokémon, choose up to 2 of them. This attack does 20 damage to each of them. (Don't apply Weakness and Resistance for Benched Pokémon.) Brock's Onix can't attack during your next turn.
+$5.16 (43.11%)past year
Price history for Raw NM, 1Y window: from $11.97 on Oct 12, 2025 to $17.13 on Oct 12, 2026, across 177 points.
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Total graded
307
Gem rate
17.3%
21 sales on record · 1st Ed Normal · latest Sep 7, 2026
| Date | Price | Grade | Marketplace | Listing |
|---|---|---|---|---|
| Sep 7, 2026 | $29.99 | PSA 7 | ebay | Brock's Onix 21/132 1st Edition Gym Heroes Pokemon PSA 7 |
| Aug 24, 2026 | $29.00 | CGC 9.5 | ebay | 2000 POKEMON GYM HEROES 1ST ED. 21/132 BROCK'S ONIX CGC 9.5 |
| Aug 23, 2026 | $16.50 | PSA 8 | ebay | Pokemon Brock's Onix Gym Heroes 21/132 1st Edition PSA 8 |
| Aug 23, 2026 | $44.00 | PSA 8 | ebay | 2000 Pokemon GYM HEROES 1st edition BROCK'S ONIX #21 RARE PSA 8 NM-MT |
| Aug 9, 2026 | $749.99 | PSA 10 | ebay | 2000 Pokemon Gym Heroes #21 Brock's Onix 1st Ed Psa 10 |
| Jul 30, 2026 | $26.00 | PSA 8 | ebay | 2000 POKEMON GYM HEROES 1ST EDITION #21 BROCK'S ONIX PSA 8 |
| Jul 21, 2026 | $85.00 | PSA 9 | ebay | PSA 9 Brock's Onix #21 1st Edition Gym Heroes 2000 Pokemon MINT |
| Jul 20, 2026 | $26.69 | PSA 8 | ebay | 2000 Pokemon Gym Heroes #21 Brock's Onix 1st Edition PSA 8 NM-MT |
| Jul 6, 2026 | $42.75 | PSA 8 | ebay | 2000 Pokemon Gym Heroes BROCK'S ONIX #21 NM-MT 1st Edition Graded PSA 8 |
| Jun 13, 2026 | $26.00 | PSA 7 | ebay | 2000 POKEMON GYM HEROES 1ST EDITION #21 BROCK'S ONIX PSA 7 |
Past performance is not indicative of future results.
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