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5 facts about this card
Brock's Onix stands out as a rare, non-holo Stage Basic from Gym Heroes, giving one of Brock's signature partners a surprisingly premium slot in the set's early Trainer's Pokémon lineup.
This card directly echoes Brock's role as Pewter City's first Gym Leader, whose Onix is the iconic roadblock many Kanto players remember from their very first badge battle.
Its Bind attack is a neat lore callback, because Brock's Onix is specifically noted as using Bind in both the original games and the anime.
Gym Heroes was the first English Pokémon TCG expansion built around named trainers and their partner Pokémon, which makes Brock's Onix feel like part of the moment the game started telling character-driven stories on cards.
Illustrated by Benimaru Itoh, the card captures Brock's ace in motion rather than a static pose, a style choice that helps it feel more like a scene from a Gym battle than a simple monster portrait.
Card Reference
Brock's Onix is a Pokemon trading card from the Pokemon Gym Heroes set, card number 21. This card has a Rare rarity, is printed in English, belongs to the Wizards of the Coast era, and was released in 2000. The current market price is $8.98, based on recent Raw NM sales tracked on Double Holo, with 1 listing currently available.
The current market price of Brock's Onix is $8.98. Market price reflects recent Raw NM sales on Double Holo and updates as new sales come in.
Brock's Onix is from the Pokemon Gym Heroes set, card number 21, released in 2000.
Whether Brock's Onix is worth grading depends on its condition and the graded population for the card. Higher grades command larger premiums, so review recent graded sales and use Double Holo's Grading ROI tools to weigh the cost of grading against the expected graded value before submitting.
You can buy or sell Brock's Onix on the Double Holo marketplace, which pairs live listings with a bid and ask order book, so you can set your own price or take the best available offer. Sellers pay a 4.9% platform fee on completed sales, with a $1 minimum.