Brock's Mankey is card #67 of 132 in Gym Heroes (2000), a Common illustrated by Atsuko Nishida. At about $3.86 it is the #100 most valuable card in the set. In a Gym Heroes booster it turns up about once every 6 packs. It is one of 27 Mankey cards printed so far.
1999Jungle
2000Team Rocket
2002Legendary Collection
2006Holon Phantoms
2009Supreme Victors
2016Steam Siege
2019Team Up
2024Paldean Fates

















See the full Gym Heroes card list
An ungraded Brock's Mankey from Gym Heroes sells for about $3.86. A PSA 10 is worth more, roughly $50.18 by our estimate, and a PSA 9 around $15.44.
It is a Common, and it shows up about once every 6 Gym Heroes packs.
Atsuko Nishida 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.