If an effect needs to know how many poison counters an individual player has, that effect uses the number of poison counters that player’s team has. If an effect needs to know how many poison counters a player’s opponents have, that effect uses the number of poison counters opposing teams have.
January 25, 2019 · Ravnica Allegiance
If an effect needs to know how many poison counters an individual player has, that effect uses the number of poison counters that player's team has. If an effect needs to know how many poison counters a player's opponents have, that effect uses the number of poison counters opposing teams have.
February 1, 2014 · Born of the Gods
If an effect needs to know how many poison counters an individual player has, that effect uses the number of poison counters that player’s team has. If an effect needs to know how many poison counters a player’s opponents have, that effect uses the number of poison counters opposing teams have.
May 1, 2013 · Dragon’s Maze
If an effect needs to know how many poison counters an individual player has, that effect uses the number of poison counters that player's team has. If an effect needs to know how many poison counters a player's opponents have, that effect uses the number of poison counters opposing teams have.
September 30, 2011 · Innistrad
If an effect needs to know how many poison counters an individual player has, that effect uses the number of poison counters that player's team has.
June 17, 2011 · Commander 2011
If an effect needs to know how many poison counters an individual player has, that effect
April 1, 2011 · Duel Decks: Knights vs. Dragons
If an effect needs to know how many poison counters an individual player has, that effect uses the number of poison counters that player's team has.