In constructed play, a sideboard may contain no more than fifteen cards. The four-card limit (see rule 100.2a) applies to the combined deck and sideboard.
September 30, 2011 · Innistrad
In constructed play, sideboards are optional, but must contain exactly fifteen cards if used. The four-card limit (see rule 100.2a) applies to the combined deck and sideboard.
June 17, 2011 · Commander 2011
In constructed play, sideboards are optional, but must contain exactly fifteen cards if used.
February 4, 2011 · Mirrodin Besieged
In constructed play, sideboards are optional, but must contain exactly fifteen cards if used. The four-card limit (see rule 100.2a) applies to the combined deck and sideboard.
October 1, 2010 · Scars of Mirrodin
In constructed play, sideboards are optional, but must contain exactly fifteen cards if used.
February 1, 2010 · Worldwake
In constructed play, sideboards are optional, but must contain exactly fifteen cards if used. The four-card limit (see rule 100.2a) applies to the combined deck and sideboard.