2.11 Taking Notes
Players are allowed to take written notes during a match and may refer to those notes while that match is in progress. At the beginning of a match, each player’s note sheet must be empty and must remain visible throughout the match. Players do not have to explain or reveal notes to other players. Judges may ask to see a player’s notes and/or request that the player explain his or her notes.
Players may not refer to other notes, including notes from previous matches, during games.

Between games, players may refer to a brief set of notes made before the match. They are not required to reveal these notes to their opponents. These notes must be removed from the play area before the beginning of the next game. Excessive quantities of notes (more than a sheet or two) are not allowed and may be penalized as slow play.

The Head Judge is the final arbiter on what cards and notes are acceptable for a tournament.


2.12 Electronic Devices
Players may use electronic devices to do the following:
• Keep track of life totals or other game-relevant information.
• Take and review notes (as outlined in section 2.11).
• Generate a random number when the game calls for one.
• Briefly answer personal calls not related to the game (with permission of the opponent).
Players may not use electronic devices to access outside strategic sources (websites, forums, etc) or communicate with others in order to receive outside assistance. Players that spend excessive time on any of the above uses of electronic devices may be subject to Slow Play penalties.
Players wishing to view information privately on electronic devices during matches must request permission from a judge.
The Head Judge of an event may further restrict or forbid the use of electronic devices during matches.