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Brock's Onix (21)
Rare · #021/132
Brock's Onix (21) #021/132 (Gym Heroes) is worth about $16.94 today, the Near Mint market price from TCGplayer sales as of 2026-10-03.
price trend and all-time high: more ↓less ↑
Brock's Onix (21) #021/132 is trending up: $16.94 today, up 11% in 30 days and at its all-time high (2026-10-03). TCGplayer market price as of 2026-10-03, tracked daily since 2024-02-08. chart →
illustrated by Benimaru Itoh
Price data for your app or store: API and daily history since 2024 ·
LOADING TAPE
WORTH GRADING?
WHERE TO BUY AND SELL
1st Edition · no eBay scan yetBuy-side estimate
$16.94
THINa patient buyer pays about $16.94 delivered, from live asks, not sales
show the work →
TCGplayer only, no eBay scan yet
| TCGplayer market | $16.94 | verify ↗ |
| TCGplayer lowest ask | $8.66 |
Single source: TCGplayer market (no usable eBay asks in the last scan).
The verdict · premium
Cards at their high after a month up 5-25% were higher 90 days later 75% of the time in our archive since 2024 (22,898 cases).
The median move, the verdict and the grade-worthy math: try Premium free for 7 days →GAME DATA[ + ] SHOW[ × ] HIDE
- CARD TYPE
- Fighting
- STAGE
- Basic
- HP
- 70
- ATTACK 1
- [FF] Bind (20) Flip a coin. If heads, the Defending Pokémon is now Paralyzed.
- ATTACK 2
- [FFF] Tunneling 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.
- WEAKNESS
- G
- RETREAT COST
- 2
MORE BY BENIMARU ITOH
FULL CATALOG →
MORE FROM GYM HEROES
FULL SET →
PRICE FAQ
What would a card shop pay for Brock's Onix (21)?
+×
Shops and show vendors commonly offer about 70% of market in cash and 80% in store credit. At today's $16.94 market price that is roughly $11.86 cash or $13.55 trade for a near-mint copy. Selling it yourself on TCGplayer or eBay nets more after fees; see the seller-net answer below.
What is Brock's Onix (21) (Gym Heroes) worth today?
+×
Brock's Onix (21) [1st Edition] has a TCGplayer market price of $16.94 as of 2026-10-02. Across 2 tracked variants, latest prices range from $8.77 to $16.94.
Is Brock's Onix (21) going up or down in price?
+×
Brock's Onix (21) #021/132 is trending up: $16.94 today, up 11% in 30 days and at its all-time high (2026-10-03). TCGplayer market price as of 2026-10-03, tracked daily since 2024-02-08. A 30-day rise this size usually follows a supply squeeze or a new format result; check the eBay book depth before buying in.
What is the all-time high price for Brock's Onix (21)?
+×
The Near Mint price, the one quoted at the top of this page, peaked at $16.94 (2026-10-03). In TickerMint's daily data (since February 2024), the TCGplayer market price for Brock's Onix (21) [1st Edition] (all conditions) peaked at $16.94 (2026-09-30) and bottomed at $8.29 (2024-07-26).
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