Blaine's Mankey is card #63 of 132 in Gym Challenge (2000), a Common illustrated by Atsuko Nishida. At about $3.54 it is the #105 most valuable card in the set. In a Gym Challenge 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 Challenge card list
An ungraded Blaine's Mankey from Gym Challenge sells for about $3.54. A PSA 10 is worth more, roughly $46.02 by our estimate, and a PSA 9 around $14.16.
It is a Common, and it shows up about once every 6 Gym Challenge packs.
Atsuko Nishida drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Gym Challenge 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.