The current value of Brock's Onix (Gym Heroes #21) is €9.50, updated July 27, 2026, based on the latest market floor tracked by RareBit.

GH · #21 · RARE

Brock's Onix

Gym Heroes · rare · illus. Benimaru Itoh

ENNM

Current value · NM · EN

€9.50

Cardmarket EN · 154 observations

not enough price points

Add to portfolio

Free account: follow your collection's value over time.

7d avg

—

30d avg

—

90d high

€9.50

90d low

€6.00

About this card

Brock's Onix is a Pokémon card from the Gym Heroes set (GH #21). Its rarity is rare. It was illustrated by Benimaru Itoh.

Price history

7D30DAll

Not enough price history yet

CM Low NMTCGplayer US

Pro analysisRead the full analysis

eBay Graded

eBay GradedAll PSA listings on eBay

• 10
  $121.50
• 9
  $22.29
• 8
  $11.27
• 7
  $9.00

Attributes

SetGym Heroes

Number#21

Rarityrare

ArtistBenimaru Itoh

Languages—

SourcesPRICECHARTING · CARDMARKET · TCGPLAYER

Population & conditions

NEAR MINT · 68

More from Benimaru Itoh

• 
  WIZARDS-BLACK-STAR-PROMOS · #14

  $13.21

Other Brock's Onix cards

• 
  GH · #69

  $1.99

Prices updated Jul 27, 2026