History of CR 904.5
Every distinct wording since 2010, newest first.
May 3, 2019 · War of the Spark
The archenemy’s starting life total is 40. Each other player’s starting life total is 20.
January 25, 2019 · Ravnica Allegiance
The archenemy's starting life total is 40. Each other player's starting life total is 20.
February 1, 2014 · Born of the Gods
The archenemy’s starting life total is 40. Each other player’s starting life total is 20.
September 30, 2011 · Innistrad
The archenemy's starting life total is 40. Each other player's starting life total is 20.
June 17, 2011 · Commander 2011
The archenemy’s starting life total is 40. Each other player’s starting life total is 20.
April 1, 2011 · Duel Decks: Knights vs. Dragons
The archenemy's starting life total is 40. Each other player's starting life total is 20.
October 1, 2010 · Scars of Mirrodin
The archenemy’s starting life total is 40. Each other player’s starting life total is 20.
June 18, 2010 · Archenemy
The archenemy's starting life total is 40. Each other player's starting life total is 20.
February 1, 2010 · Worldwake
rule 904.5 not present in this release