Magic: The Gathering Comprehensive Rules

103.4b A player knows the choices made by the previous players when he or she makes his or her choice, except as specified in 103.4a. 103.4c If a player would make more than one choice at the same time, the player makes the choices in the order written, or in the order he or she chooses if the choices aren’t ordered. 104. Numbers and Symbols ... ................
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