Koga's Ditto is card #10 of 132 in Gym Challenge (2000), a Rare Holo illustrated by Ken Sugimori. At about $100 it is the #19 most valuable card in the set. In a Gym Challenge booster it turns up about once every 59 packs. It is one of 32 Ditto cards printed so far.
1999Fossil
2000Gym Challenge
2003Skyridge
2006POP Series 3
2010HS鈥擳riumphant
2013XY Black Star Promos
2019Detective Pikachu
2023Crown Zenith

















See the full Gym Challenge card list
An ungraded Koga's Ditto from Gym Challenge sells for about $100. A PSA 10 is worth more, roughly $1,300 by our estimate, and a PSA 9 around $400.
It is a Rare Holo, and it shows up about once every 59 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.