History of CR 605.2
Every distinct wording since 2010, newest first.
May 3, 2019 · War of the Spark
A mana ability remains a mana ability even if the game state doesn’t allow it to produce mana.
January 25, 2019 · Ravnica Allegiance
A mana ability remains a mana ability even if the game state doesn't allow it to produce mana.
February 1, 2014 · Born of the Gods
A mana ability remains a mana ability even if the game state doesn’t allow it to produce mana.
September 30, 2011 · Innistrad
A mana ability remains a mana ability even if the game state doesn't allow it to produce mana.
June 17, 2011 · Commander 2011
A mana ability remains a mana ability even if the game state doesn’t allow it to produce mana.
April 1, 2011 · Duel Decks: Knights vs. Dragons
A mana ability remains a mana ability even if the game state doesn't allow it to produce mana.
October 1, 2010 · Scars of Mirrodin
A mana ability remains a mana ability even if the game state doesn’t allow it to produce mana.
February 1, 2010 · Worldwake
A mana ability remains a mana ability even if the game state doesn't allow it to produce mana.