Treecko is card #7 of 168 in Celestial Storm (2018), a Common illustrated by Sekio. At about $0.66 it is the #108 most valuable card in the set. In a Celestial Storm booster it turns up about once every 7 packs. It is one of 23 Treecko cards printed so far.
2003Ruby & Sapphire
2004Team Rocket Returns
2006Crystal Guardians
2008Great Encounters
2009Arceus
2013Plasma Freeze
2018Lost Thunder
2021McDonald's Collection 2021

















See the full Celestial Storm card list
An ungraded Treecko from Celestial Storm sells for about $0.66. A PSA 10 is worth more, roughly $3.30 by our estimate, and a PSA 9 around $1.52.
It is a Common, and it shows up about once every 7 Celestial Storm packs.
Sekio drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Celestial Storm 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.