Brock's Diglett is card #67 of 132 in Gym Challenge (2000), a Common illustrated by Ken Sugimori. At about $2.70 it is the #116 most valuable card in the set. In a Gym Challenge booster it turns up about once every 6 packs. It is one of 29 Diglett cards printed so far.
1999Base Set
2000Team Rocket
2003Skyridge
2006Crystal Guardians
2010HS—Triumphant
2016Fates Collide
2019Unbroken Bonds
2021Chilling Reign

















See the full Gym Challenge card list
An ungraded Brock's Diglett from Gym Challenge sells for about $2.70. A PSA 10 is worth more, roughly $35.10 by our estimate, and a PSA 9 around $10.80.
It is a Common, and it shows up about once every 6 Gym Challenge packs.
Ken Sugimori 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.