Ureni, the Song Unending Ureni, the Song Unending is well worth investing 8 mana into, as its a giant dragon with relevant protection from spot removal
Either way, the pattern is clear: At MSRP (5,500) : EV is roughly breakeven to slightly positive excellent for a sealed product At market price (13,800) : EV covers approximately 35-46% of the box cost Understanding the Variance A negative EV against market price is standard for every Pokemon TCG booster box and Shiny Treasure ex actually has one of the better ratios among High Class Packs
There are a bunch of Commander Classics like Hornet Queen, Nantuko Vigilante, Caustic Caterpillar, future strong cards like Haywire Mite, multiplayer classics like flying regenerator Fog of Gnats and the card drawing and recurring Grave-Shell Scarab, token making Ant Queen, game winning rampers like Moldgraf Monstrosity, Giant Adephage and Living Hive
Finally, in the fall of 2016, a set codenamed Lock will be released which will finally hail the rotation of Dragons of Tarkir