Brock's Training Method is card #106 of 132 in Gym Heroes (2000), a Uncommon illustrated by Ken Sugimori. At about $4.04 it is the #99 most valuable card in the set. In a Gym Heroes booster it turns up about once every 14 packs.


















See the full Gym Heroes card list
An ungraded Brock's Training Method from Gym Heroes sells for about $4.04. A PSA 10 is worth more, roughly $52.52 by our estimate, and a PSA 9 around $16.16.
It is a Uncommon, and it shows up about once every 14 Gym Heroes packs.
Ken Sugimori drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Gym Heroes booster packs in your browser with the set's real pull rates and keep what you pull in a digital binder. No real cards, nothing to buy.