For the purposes of the following potential tournaments ruling, I am going to create a term for something in the game and present an existing term for similar games
Dice Bank : Dice you own with associated cards in your deck that are not in play. When a card with a die enters play under your control under standard rules, you take its die from the Dice Bank and place it onto that card.
Common Knowledge : some aspect of play to which every player has access. Examples include the number of cards in a player’s hand or what active cards they currently have in play.
Now that we have those defined, on to the question.
Are the contents of your Dice Bank common knowledge?
I am in favor of the answer being no. High levels of dedication will allows players to learn much of the contents of an opponent’s deck by looking at the pictures on the dice in the Bank. This particular knowledge is a huge advantage. I do not believe the opponent will be required to answer any questions about cards that are not in play, such as: “Is a BB-8 die?” or “How many dice are in your Bank?” Additionally, I do not think player to examine an opponent’s dice when they are not in play.
Who’s going to take the time to do that?
Anyone who wishes to win more than others. There are people who can predict cards not seen by the amount of Influence in a discard pile for the LCG Android: Netrunner. To answer the follow-up argument of “But this game will be different/casual!” 1) There is no way to know that 2) If it is different, it will become less so as the game increases in popularity.
Will that lend itself to cheating?
Each die has the image of it associated card and each card lists the sides of its associated die. It will be impossible to place dice onto the wrong card without notice.
Won’t it slow down game play to have to collect every die before it hits play?
That depends on how the dice are stored. Additionally, given the very fast pace of the game and small deck size, I am going to advocate the house of “Seen Stays.” This means that once a die exits the Bank, it doesn’t need to go back. There is much less information that needs to be recalled in this game, meaning it is unlikely that someone will forge something after it has been played. This may be amended as the pool of available cards grows with future expansions.