Marill is card #36 of 149 in Boundaries Crossed (2012), a Common illustrated by Mizue. At about $4.63 it is the #61 most valuable card in the set. In a Boundaries Crossed 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
2004Team Rocket Returns
2007Diamond & Pearl
2012Boundaries Crossed
2015Primal Clash
2017Burning Shadows
2023Paldea Evolved

















See the full Boundaries Crossed card list
An ungraded Marill from Boundaries Crossed sells for about $4.63. A PSA 10 is worth more, roughly $37.04 by our estimate, and a PSA 9 around $12.96.
It is a Common, and it shows up about once every 9 Boundaries Crossed packs.
Mizue drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Boundaries Crossed 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.