Each player chooses 10 cards.
You may list no more than 1 rare card, and no more than 3 upgraded.
Before each duel, you and your opponent exchange lists.
Both people build decks using only cards you and your opponent have mentioned.
You should more or less use cards evenly from both lists, and a disparity of more than 60-40 is not allowed.
Other than that, it is a normal double elimination tournament.