Mew-EX is card #RC24 of 113 in Legendary Treasures (2013), a Rare Ultra illustrated by Mahou. At about $259 it is the #3 most valuable card in the set. In a Legendary Treasures booster it turns up about once every 99 packs. It is one of 57 Mew cards printed so far.
1999Wizards Black Star Promos
2003Nintendo Black Star Promos
2007Secret Wonders
2011BW Black Star Promos
2013Legendary Treasures
2016Evolutions
2020Darkness Ablaze
2022Lost Origin Trainer Gallery

















See the full Legendary Treasures card list
An ungraded Mew-EX from Legendary Treasures sells for about $259. A PSA 10 is worth more, roughly $2,074 by our estimate, and a PSA 9 around $726.
It is a Rare Ultra, and it shows up about once every 99 Legendary Treasures packs.
Mahou drew the art for this card.
Yes, as a digital simulator. Holobrook lets you open Legendary Treasures 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.