Brock's Onix

Gym Heroes · #21 · Rare

$13.76US · TCGplayer

$8.14EU · Cardmarket

+21%7-day (EU)

+8%30-day (EU)

RareRarity

#51 of 132Rank in set

Price detail

Market read: heating up — +21% in 7 days; ⚠ a sharp, recent spike — moves this fast are often speculative and can cool off as quickly as they spiked; notably pricier in the US.

TCGplayer (US) (1stEdition)

Tier	USD
Low	$8.66
Market	$13.76
Mid	$20.00
High	$210

Every print variant (2)

Variant	Market	Low – High
1st Edition	$13.76	$8.66 – $210
Unlimited	$8.74	$6.37 – $65.57

The same card, different print: $13.76 vs $8.74 — a 1.6× spread. Check which variant a listing actually is before you judge the price.

Cardmarket (EU)

Metric	EUR
Trend	€7.54
Avg 1-day	€4.45
Avg 7-day	€6.23
Avg 30-day	€6.98
Low	€1.50

FAQ

How much is Brock's Onix (Gym Heroes #21) worth?

As of our 2026-08-07 data, Brock's Onix from Gym Heroes is worth about $13.76 (TCGplayer US market) and around €8.14 (Cardmarket EU). Prices move constantly — check the live links before buying or selling.

Is Brock's Onix rare?

Its rarity is listed as Rare and it ranks #51 of 132 by value in Gym Heroes. Rarity is the printed classification — it does not by itself guarantee value.

What's the most valuable card in Gym Heroes?

By current US market price, it's Sabrina's Gengar at $601.

Is Brock's Onix's price going up or down?

On the Cardmarket (EU) trend it's +21% over 7 days, +8% over 30 days. That's an early momentum signal, not a guarantee — collectible prices are volatile and can reverse quickly.

Where can I check Brock's Onix's live price?

See the current TCGplayer (US) market price here: Brock's Onix on TCGplayer ↗.