History of CR 508.5a

Every distinct wording since 2010, newest first.

May 3, 2019 · War of the Spark
In a multiplayer game, any rule, object, or effect that refers to a “defending player” refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
January 25, 2019 · Ravnica Allegiance
In a multiplayer game, any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
August 25, 2017 · Commander 2017
In a multiplayer game, any rule, object, or effect that refers to a “defending player” refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
September 30, 2016 · Kaladesh
rule 508.5a not present in this release
May 1, 2014 · Journey into Nyx
In a multiplayer game, any rule, object, or effect that refers to a “defending player” refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
September 30, 2011 · Innistrad
In a multiplayer game, any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
June 17, 2011 · Commander 2011
In a multiplayer game, any rule, object, or effect that refers to a “defending player” refers to
April 1, 2011 · Duel Decks: Knights vs. Dragons
In a multiplayer game, any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
February 4, 2011 · Mirrodin Besieged
In a multiplayer game, any rule, object, or effect that refers to a “defending player” refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
October 1, 2010 · Scars of Mirrodin
In a multiplayer game, any rule, object, or effect that refers to a “defending player” refers to
June 18, 2010 · Archenemy
In a multiplayer game, any rule, object, or effect that refers to a "defending player" refers to one specific defending player, not to all of the defending players. If a spell or ability could apply to multiple attacking creatures, the appropriate defending player is individually determined for each of those attacking creatures. If there are multiple defending players that could be chosen, the controller of the spell or ability chooses one.
February 1, 2010 · Worldwake
rule 508.5a not present in this release