Marill is card #29 of 53 in Wizards Black Star Promos (1999), a Promo illustrated by Ken Sugimori. At about $6.45 it is the #51 most valuable card in the set. It is one of 26 Marill cards printed so far.
1999Wizards Black Star Promos
2001Southern Islands
2004Team Rocket Returns
2007Diamond & Pearl
2015Primal Clash
2017Burning Shadows
2023Paldea Evolved
2026Ascended Heroes

















See the full Wizards Black Star Promos card list
An ungraded Marill from Wizards Black Star Promos sells for about $6.45. A PSA 10 is worth more, roughly $83.85 by our estimate, and a PSA 9 around $25.80.
It is a Promo.
Ken Sugimori drew the art for this card.