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Brock's Onix cards.

2 cards across 1 sets
updated Aug 14, 2026
Most valuable$14.02Cards priced2Sets1All copies$21

Every Brock's Onix card we price, most valuable first. Prices are what copies actually sold for, updated daily.

Brock's Onix (69), Gym Heroes2Brock's Onix (69)Gym Heroes · 069/132$6.57Brock's Onix (21), Gym Heroes1Brock's Onix (21)Gym Heroes · 021/132$14.02
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2 of 2 · 2 cards
Brock's Onix · 2 cards
Brock's Onix (21), Gym HeroesBrock's Onix (21)$14.02GYM HEROESBrock's Onix (69), Gym HeroesBrock's Onix (69)$6.57GYM HEROES

What a Brock's Onix card is worth

The most valuable Brock's Onix on this list is Brock's Onix (21) from Gym Heroes at $14.02, and the 2 priced copies across 1 sets are worth $21 together. Most of that sits in a handful of printings: the older the set and the scarcer the print run, the wider the gap to the rest.

If you are trying to identify which Brock's Onix you have, the set name is printed on the card and the collector number sits in the bottom corner. Open the card here and the page carries every printing of it, the graded prices, and whether grading the copy is worth the fee. Sets to start with: Gym Heroes.