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PSA 10: PriceCharting; refreshed Sep 10, 2026
GemDelta shows Brock's Onix (Gym Heroes #69) at $1.99 market price (PriceCharting raw (eBay sold fallback)). Its Delta multiple is 42.3x.
A PSA 10 Brock's Onix (Gym Heroes #69) is currently shown at $84.21. GemDelta labels this as an unverified PriceCharting guide fallback rather than verified recent sales.
GemDelta records a 13.0% gem rate for Brock's Onix (Gym Heroes #69), with 22 PSA 10 copies out of 169 total PSA grades and a 42.3x Delta. That describes the grading profile; it is not financial advice.