About Brock's Onix
Brock's Onix from the Gym Heroes set (#21) is a Pokemon trading card released in 2000. It has a rarity of Rare. Current fair market values for Brock's Onix are PSA 10: $121.50, PSA 9: $22.43, PSA 8: $11.21, Raw: $6.32. The most recent PSA 10 sale was $133.34 on March 14, 2026. A raw (ungraded) copy last sold for $15.50 on April 29, 2026. 110 copies of Brock's Onix sold in the last 30 days across eBay, Goldin, and other marketplaces. CardIndex has tracked 3 total sales across all grades for this card. There are currently 72 active listings for Brock's Onix.
