History of CR 810.10b
Every distinct wording since 2010, newest first.
May 3, 2019 · War of the Spark
If an effect says that a player loses poison counters, that player’s team loses that many poison counters.
January 25, 2019 · Ravnica Allegiance
If an effect says that a player loses poison counters, that player's team loses that many poison counters.
February 1, 2014 · Born of the Gods
If an effect says that a player loses poison counters, that player’s team loses that many poison counters.
September 30, 2011 · Innistrad
If an effect says that a player loses poison counters, that player's team loses that many poison counters.
June 17, 2011 · Commander 2011
If an effect says that a player loses poison counters, that player’s team loses that many
April 1, 2011 · Duel Decks: Knights vs. Dragons
If an effect says that a player loses poison counters, that player's team loses that many poison counters.
February 1, 2010 · Worldwake
rule 810.10b not present in this release