Gardevoir-EX is card #111 of 114 in Steam Siege (2016), a Rare Ultra illustrated by Ryo Ueda. At about $26.80 it is the #5 most valuable card in the set. In a Steam Siege booster it turns up about once every 145 packs. It is one of 56 Gardevoir cards printed so far.
2003Ruby & Sapphire
2007Secret Wonders
2012Dark Explorers
2016Steam Siege
2018Lost Thunder
2021Chilling Reign
2023Scarlet & Violet
2026Ascended Heroes

















See the full Steam Siege card list
An ungraded Gardevoir-EX from Steam Siege sells for about $26.80. A PSA 10 is worth more, roughly $134 by our estimate, and a PSA 9 around $61.64.
It is a Rare Ultra, and it shows up about once every 145 Steam Siege packs.
Ryo Ueda drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Steam Siege 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.