Brock's Onix (21)
Brock's Onix (21) #021/132 (Gym Heroes) is worth about $17.36 today for a 1st Edition copy, the TCGplayer market price for any condition as of 2026-10-27, up 4% over 30 days. Unlimited copies are $11.31.
This card has 2 printings (TCGplayer market, 2026-10-27): 1st Edition $17.36 (this page), Unlimited $11.31 (on this page's chart).
price trend and all-time high: more ↓less ↑
Brock's Onix (21) #021/132 is trending up: $17.36 today, up 4% in 30 days and at its all-time high (2026-10-26), and 2.1x its low of $8.29 (2024-07-26). TCGplayer market price as of 2026-10-27, tracked daily since 2024-02-08. chart →
Price data for your app or store: API and daily history since 2024 · CSV download
WORTH GRADING?
WHERE TO BUY AND SELL
1st Edition · eBay scanned Oct 7show the work →
| TCGplayer market | $17.36 | verify ↗ |
| TCGplayer lowest ask | $8.66 | |
| eBay delivered floor (scanned 21d ago) | $9.33 | the listing ↗ |
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 $17.36 market price that is roughly $12.15 cash or $13.89 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 $17.36 as of 2026-10-27. Unlimited copies are $11.31.
Is Brock's Onix (21) going up or down in price?
+×
Brock's Onix (21) #021/132 is trending up: $17.36 today, up 4% in 30 days and at its all-time high (2026-10-26), and 2.1x its low of $8.29 (2024-07-26). TCGplayer market price as of 2026-10-27, tracked daily since 2024-02-08. Other windows: up 0.9% over 7 days, up 26.2% over 90 days, up 45.4% over a year.
What is the all-time high price for Brock's Onix (21)?
+×
In TickerMint's daily data (since February 2024), the TCGplayer market price for Brock's Onix (21) [1st Edition] (all conditions) peaked at $17.36 (2026-10-26) and bottomed at $8.29 (2024-07-26).
DISCUSSION
LOG IN to join the discussion.
What's your read on this card? Start the thread.
Get the weekly deep dive by email → one email a week, the cards and artists moving the market