Groudon ex is card #38 of 40 in Nintendo Black Star Promos (2003), a Promo illustrated by Ryo Ueda. At about $363 it is the #4 most valuable card in the set. It is one of 34 Groudon cards printed so far.
2003Nintendo Black Star Promos
2005Delta Species
2008Legends Awakened
2012Dark Explorers
2015Double Crisis
2019Cosmic Eclipse
2023Paradox Rift
2026Delta Reign

















See the full Nintendo Black Star Promos card list
An ungraded Groudon ex from Nintendo Black Star Promos sells for about $363. A PSA 10 is worth more, roughly $4,718 by our estimate, and a PSA 9 around $1,452.
It is a Promo.
Ryo Ueda drew the art for this card.