Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the Magic: The Gathering Tournament Rules). See the Magic: The Gathering Tournament Rules for the current definitions of the constructed formats (WPN.Wizards.com/en/rules-documents).
October 5, 2018 · Guilds of Ravnica
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the Magic: The Gathering Tournament Rules). See the Magic: The Gathering Tournament Rules for the current definitions of the constructed formats (WPN.Wizards.com/en/resources/rules-documents).
September 25, 2014 · Khans of Tarkir
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the Magic Tournament Rules). See the Magic Tournament Rules for the current definitions of the constructed formats (WPN.Wizards.com/en/resources/rules-documents).
May 1, 2014 · Journey into Nyx
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the Magic Tournament Rules). See the Magic Tournament Rules for the current definitions of the constructed formats (Wizards.com/WPN/Events/Rules.aspx).
February 1, 2014 · Born of the Gods
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the _Magic_ Tournament Rules). See the _Magic_ Tournament Rules for the current definitions of the constructed formats (<Wizards.com/WPN/Events/Rules.aspx>).
July 13, 2013 · Magic 2014
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the _Magic_ Tournament Rules). See the _Magic_ Tournament Rules for the current definitions of the constructed formats (Wizards.com/WPN/Events/Rules.aspx).
May 1, 2013 · Dragon’s Maze
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the _Magic_ Tournament Rules). See the _Magic_ Tournament Rules for the current definitions of the constructed formats (<www.wizards.com/wpn/Events/Rules.aspx>).
May 1, 2012 · Avacyn Restored
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the _Magic_ Tournament Rules). See the _Magic_ Tournament Rules for the current definitions of the constructed formats (www.wizards.com/wpn/Events/Rules.aspx).
February 1, 2012 · Dark Ascension
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the _Magic_ Tournament Rules). See the _Magic_ Tournament Rules for the current definitions of the constructed formats (<www.wizards.com/wpn/Events/Rules.aspx>).
September 30, 2011 · Innistrad
Players may include cards from any printing in their constructed decks if those cards appear in sets allowed in that format (or those cards are specifically allowed by the _Magic_ Tournament Rules). See the _Magic_ Tournament Rules for the current definitions of the constructed formats (www.wizards.com/wpn/Events/Rules.aspx).
June 17, 2011 · Commander 2011
The chaos symbol {C} appears in the text box of each plane card to the left of a triggered ability
February 4, 2011 · Mirrodin Besieged
The chaos symbol {C} appears in the text box of each plane card to the left of a triggered ability that triggers whenever {C} is rolled on the planar die. The symbol itself has no special rules meaning.
October 1, 2010 · Scars of Mirrodin
The chaos symbol {C} appears in the text box of each plane card to the left of a triggered ability
February 1, 2010 · Worldwake
The chaos symbol {C} appears in the text box of each plane card to the left of a triggered ability that triggers whenever {C} is rolled on the planar die. The symbol itself has no special rules meaning.