Holofile
Brock's Onix 21/132 Gym Heroes

GYM HEROES

Brock's Onix 21/132

Brock's Onix is card 21/132 in Gym Heroes (G1), a Gym set, released on August 14, 2000. It’s a Rare illustrated by Benimaru Itoh. It comes in 2 printings: 1st Edition and Unlimited. A Near Mint Unlimited copy has a market price of $11.08 as of October 17, 2026, up 26% over 30 days.

Market price · Near Mint · Unlimited

$11.08+26% in 30 days

Jul 19, 2026 · $8.75Low $8.75 · High $11.08Oct 17, 2026 · $11.08

As of October 17, 2026. Prices are estimates from third-party market data and are not offers to buy or sell. Holo10 in the Holofile app adds 6-month, 1-year and all-time charts.

Number
21/132
Rarity
Rare
Pokémon
Onix
Released
August 14, 2000

Printings and prices

1st Edition

Ungraded
ConditionMarket30 days
Near Mint$17.21+5%
Lightly Played$10.66+1%
Moderately Played$9.04+3%
Heavily Played$6.350%
Damaged$4.990%
Graded
GradeMarket30 days
PSA 10$545.83+4%
PSA 9$84.35+26%
PSA 8$35.07−10%
CGC 10$70.68+4%
CGC 9.5$29.000%
CGC 9$11.10−2%
BGS 9$15.000%
SGC 9$33.770%

Unlimited

Ungraded
ConditionMarket30 days
Near Mint$11.08+26%
Lightly Played$7.48+3%
Moderately Played$5.98+6%
Heavily Played$4.660%
Damaged$3.58+17%
Graded
GradeMarket30 days
PSA 10$126.46+1%
PSA 9$18.000%
PSA 8$10.580%
PSA 7$13.000%
PSA 6$10.00
PSA 5$8.26+1%
CGC 10$13.000%
CGC 7$18.000%

Market prices as of October 17, 2026: in US dollars unless marked. Prices are estimates from third-party market data and are not offers to buy or sell.