These cards can be redeemed to craft any card in the game if players have the wildcard of correlating rank: Gray = Common Cyan = Uncommon Gold = Rare Red = Mythic Rare Gems are rarer, unless players are willing to fork over some real-world money (in the form of widely hated microtransactions)
On the PokeDATA website, you enter the name of the card that you have and it will bring up a list of potential matches
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The treasures also enable expensive bombs and activated abilities that white traditionally struggles to afford
This is a great strategy if you want to play the long game and outlast your opponent
However, if you love Blue tempo and love challenging games, the deck has certainly proven it has the chops to win