History of CR 702.29a

Every distinct wording since 2010, newest first.

April 22, 2021 · Strixhaven
Cycling is an activated ability that functions only while the card with cycling is in a player’s hand. “Cycling [cost]” means “[Cost], Discard this card: Draw a card.”
May 3, 2019 · War of the Spark
Echo is a triggered ability. “Echo [cost]” means “At the beginning of your upkeep, if this permanent came under your control since the beginning of your last upkeep, sacrifice it unless you pay [cost].”
January 25, 2019 · Ravnica Allegiance
Echo is a triggered ability. "Echo [cost]" means "At the beginning of your upkeep, if this permanent came under your control since the beginning of your last upkeep, sacrifice it unless you pay [cost]."
May 1, 2014 · Journey into Nyx
Echo is a triggered ability. “Echo [cost]” means “At the beginning of your upkeep, if this permanent came under your control since the beginning of your last upkeep, sacrifice it unless you pay [cost].”
July 13, 2013 · Magic 2014
Echo is a triggered ability. "Echo [cost]" means "At the beginning of your upkeep, if this permanent came under your control since the beginning of your last upkeep, sacrifice it unless you pay [cost]."
June 17, 2011 · Commander 2011
Horsemanship is an evasion ability.
April 1, 2011 · Duel Decks: Knights vs. Dragons
Fading is a keyword that represents two abilities. "Fading N" means "This permanent enters the battlefield with N fade counters on it" and "At the beginning of your upkeep, remove a fade counter from this permanent. If you can't, sacrifice the permanent."
February 4, 2011 · Mirrodin Besieged
Fading is a keyword that represents two abilities. “Fading N” means “This permanent enters the battlefield with N fade counters on it” and “At the beginning of your upkeep, remove a fade counter from this permanent. If you can’t, sacrifice the permanent.”
October 1, 2010 · Scars of Mirrodin
Fading is a keyword that represents two abilities. “Fading N” means “This permanent
February 1, 2010 · Worldwake
Fading is a keyword that represents two abilities. "Fading N" means "This permanent enters the battlefield with N fade counters on it" and "At the beginning of your upkeep, remove a fade counter from this permanent. If you can't, sacrifice the permanent."