Historical Rules · 25 January 2019
Rule 810.10c
Official source text from the 25 January 2019 Rules release
If an effect says that a player can't get poison counters, no player on that player's team can get poison counters.
Historical Rules · 25 January 2019
Official source text from the 25 January 2019 Rules release
If an effect says that a player can't get poison counters, no player on that player's team can get poison counters.