Treasures are useful because they can accelerate your mana in a pinch, or you can use Magdas payoff effect to find expensive artifacts or Dragons to close the game with, opening up a cool token play pattern that is a breath of fresh air after years of Krenko and Purphoros, God of the Forge combo killing tables by generating a zillion goblins
There is also no way to play this game without owning the nearly two decade old CD At least, not until now image15362048 354 KB Let me quickly take you through my journey of preserving the Lost 2005 Pokemon Game
These are a great way to make high-demand reprints accessible while adding flavor to a Limited format
(4/15/2013) You must sacrifice exactly one creature to cast this spell
For your troubles, it's also going to cost you an arm and a leg, being a Mythic Rare chase card that's, let me remind you, a mana rock
Cards are just a hair thinner than the official ones, but it is in no way a complaint nor an issue from me, just that I wanted to put that here for others