Gym Heroes · Gym · Released Aug 14, 2000
$11.30
Market price · Raw NM · 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.
+$4.81 (74.11%)past year
Price history for Raw NM, 1Y window: from $6.49 on Oct 12, 2025 to $11.30 on Oct 12, 2026, across 177 points.
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Total graded
125
Gem rate
17.6%
12 sales on record · Normal · latest Apr 8, 2026
| Date | Price | Grade | Marketplace | Listing |
|---|---|---|---|---|
| Apr 8, 2026 | $10.50 | PSA 8 | ebay | PSA 8 | Pokemon TCG | Gym Heroes | Brock's Onix #21 |
| Mar 14, 2026 | $133.13 | PSA 10 | ebay | PSA 10 Brock's Onix Gym Heroes 21/132 Unlimited Pokemon Card GEM MINT |
| Jan 6, 2026 | $121.50 | PSA 10 | ebay | 2000 Pokémon Gym Heroes Brock's Onix #21 PSA 10 Vintage WOTC |
Free plan shows 1 year of sales history.Upgrade for deeper history →
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