Koga's Kakuna is card #47 of 132 in Gym Challenge (2000), a Uncommon illustrated by Ken Sugimori. At about $6.28 it is the #78 most valuable card in the set. In a Gym Challenge booster it turns up about once every 14 packs. It is one of 22 Kakuna cards printed so far.
1999Base Set
2000Gym Challenge
2002Legendary Collection
2004FireRed & LeafGreen
2009Rising Rivals
2014XY
2017Crimson Invasion
2020Champion's Path

















See the full Gym Challenge card list
An ungraded Koga's Kakuna from Gym Challenge sells for about $6.28. A PSA 10 is worth more, roughly $81.64 by our estimate, and a PSA 9 around $25.12.
It is a Uncommon, and it shows up about once every 14 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.