Magearna-EX is card #75 of 114 in Steam Siege (2016), a Rare Holo EX illustrated by 5ban Graphics. At about $1.56 it is the #30 most valuable card in the set. In a Steam Siege booster it turns up about once every 47 packs. It is one of 12 Magearna cards printed so far.
2013XY Black Star Promos
2016Steam Siege
2018Lost Thunder
2020Vivid Voltage
2022Silver Tempest
2025Journey Together

















See the full Steam Siege card list
An ungraded Magearna-EX from Steam Siege sells for about $1.56. A PSA 10 is worth more, roughly $7.80 by our estimate, and a PSA 9 around $3.59.
It is a Rare Holo EX, and it shows up about once every 47 Steam Siege packs.
5ban Graphics 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.