Brock's Onix card values & prices

Every Brock's Onix printing we track in Pokémon, ranked by market value (approx., as of 2026-07-20). Tap any card for its live value, optimal buy & sell prices, and a 1-year forecast.

Across 2 Pokémon printings we track, Brock's Onix ranges from $13.12 to $35.93.

Brock's Onix Gym Heroes card priceBrock's OnixGym Heroes$35.93Buy on eBay →
Brock's Onix Gym Heroes card priceBrock's OnixGym Heroes$13.12Buy on eBay →
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Common questions
How much is Brock's Onix worth?

Brock's Onix ranges from $13.12 to $35.93 across the 2 Pokémon printings we track. The most valuable is the Gym Heroes printing at about $35.93. Tap any printing for its live value and optimal buy/sell prices.

Which Brock's Onix card is most valuable?

The Gym Heroes printing, at about $35.93. Values move with condition, grade, and the specific set.

Why do Brock's Onix prices vary so much?

Different printings — base set, holo, alternate art, promos — plus condition and professional grade (e.g., PSA 10) can swing value many times over. Each printing below links to its own live valuation.