Duosion is card #75 of 113 in Legendary Treasures (2013), a Uncommon illustrated by Suwama Chiaki. At about $1.57 it is the #123 most valuable card in the set. In a Legendary Treasures booster it turns up about once every 12 packs. It is one of 9 Duosion cards printed so far.
2011Black & White
2013Legendary Treasures
2016Fates Collide
2022Silver Tempest
2024Temporal Forces
2025Black Bolt

















See the full Legendary Treasures card list
An ungraded Duosion from Legendary Treasures sells for about $1.57. A PSA 10 is worth more, roughly $12.56 by our estimate, and a PSA 9 around $4.40.
It is a Uncommon, and it shows up about once every 12 Legendary Treasures packs.
Suwama Chiaki 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.