Choose a Deck from the "Deck Selection" drop down. Choose from:
D-Struction Deck = Built to mess up Pressures from other players and make lots of diamonds quickly (D-Grade). This deck contains 20 cards that work D-lightfully together.
Blue Abyss Deck = Focus on just collecting more liquid diamonds than your opponents during each of your turns. Meanwhile, this deck removes pressure from the other players with ALL the Abyss cards and Removal, too. This deck contains 20 cards that work together blue-tifully.