Zygarde-EX is card #XY151 of 211 in XY Black Star Promos (2013), a Promo illustrated by Eske Yoshinob. At about $6.09 it is the #171 most valuable card in the set. It is one of 27 Zygarde cards printed so far.
2013XY Black Star Promos
2016Fates Collide
2017Burning Shadows
2018Forbidden Light
2020Vivid Voltage
2021Evolving Skies
2022Silver Tempest
2026Perfect Order

















See the full XY Black Star Promos card list
An ungraded Zygarde-EX from XY Black Star Promos sells for about $6.09. A PSA 10 is worth more, roughly $48.72 by our estimate, and a PSA 9 around $17.05.
It is a Promo.
Eske Yoshinob drew the art for this card.