History of CR 809.6

Every distinct wording since 2010, newest first.

September 30, 2011 · Innistrad
The Emperor variant can also be played with any number of equally sized teams. If the teams have more than three players, the range of influence of each player should be adjusted.
June 17, 2011 · Commander 2011
The Emperor variant can also be played with any number of equally sized teams. If the teams
February 4, 2011 · Mirrodin Besieged
The Emperor variant can also be played with any number of equally sized teams. If the teams have more than three players, the range of influence of each player should be adjusted.
October 1, 2010 · Scars of Mirrodin
The Emperor variant can also be played with any number of equally sized teams. If the teams
June 18, 2010 · Archenemy
The Emperor variant can also be played with any number of equally sized teams. If the teams have more than three players, the range of influence of each player should be adjusted.
February 1, 2010 · Worldwake
rule 809.6 not present in this release