Marill is card #120 of 165 in Expedition Base Set (2002), a Common illustrated by Satoshi Ohta. At about $23.98 it is the #134 most valuable card in the set. In an Expedition Base Set booster it turns up about once every 9 packs. It is one of 26 Marill cards printed so far.
1999Wizards Black Star Promos
2001Southern Islands
2002Expedition Base Set
2004Team Rocket Returns
2007Diamond & Pearl
2015Primal Clash
2017Burning Shadows
2023Paldea Evolved

















See the full Expedition Base Set card list
An ungraded Marill from Expedition Base Set sells for about $23.98. A PSA 10 is worth more, roughly $312 by our estimate, and a PSA 9 around $95.92.
It is a Common, and it shows up about once every 9 Expedition Base Set packs.
Satoshi Ohta drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Expedition Base Set 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.