MTG Players Terrified Poison Support Will "Kill Commander"

Poison counters debuted in the set Legends in 1994. The card Pit Scorpion Pit Scorpion Whenever this creature deals damage to a player, that player gets a poison counter. (A player with ten or more poison counters loses the game.) gives opponents poison counters when it damages them. The tokens produced by the card Serpent Generator Serpent Generator {4}, {T}: Create a 1/1 colorless Snake artifact creature token. It has "Whenever this creature deals damage to a player, that player gets a poison counter." (A player with ten or more poison counters loses the game.) also give damaged opponents poison counter. If at any time, a player has 10 poison counters they lose the game.

Since Legends, Poison Counters have appeared again sporadically throughout the years. They are majorly associated with the Phyrexians, as many Phyrexian creatures printed in 2010–2011s Scars of Mirrodin block distribute Poison counters via the infect mechanic.

Poison counters have a strong presence in Commander. Triumph of the Hordes Triumph of the Hordes Until end of turn, creatures you control get +1/+1 and gain trample and infect. (Creatures with infect deal damage to creatures in the form of -1/-1 counters and to players in the form of poison counters.) sits alongside Craterhoof Behemoth Craterhoof Behemoth Haste
When this creature enters, creatures you control gain trample and get +X/+X until end of turn, where X is the number of creatures you control. as one of Green’s most iconic finishers. There are also notable poison counter focussed commanders like Fynn, the Fangbearer Fynn, the Fangbearer Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Whenever a creature you control with deathtouch deals combat damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.) . At the time of writing, Fynn, the Fangbearer Fynn, the Fangbearer Deathtouch (Any amount of damage this deals to a creature is enough to destroy it.)
Whenever a creature you control with deathtouch deals combat damage to a player, that player gets two poison counters. (A player with ten or more poison counters loses the game.) is the 90th most popular commander in the game, according to EDHREC’s data.

This is not the first comment that Menery has made regarding the upcoming set. He previously expressed his concerns about the card Elesh Norn, Mother of Machines Elesh Norn, Mother of Machines Vigilance
If a permanent entering causes a triggered ability of a permanent you control to trigger, that ability triggers an additional time.
Permanents entering don't cause abilities of permanents your opponents control to trigger. in an article on Star City Games. Like with poison counters, Menery decided not to take pre-emptive action and to observe the situation “over the next quarter or two” before making any bans.

Saffron Olive, a notable MTG content creator, ran a poll to gauge the views of his 80’000+ Twitter followers. He asked his fans whether they felt the number of poison counters needed to defeat a player in Commander should be doubled from 10 to 20, or whether they were fine with the current rules. 37.2% of respondents stated that they want to keep the rules as they are, whilst 32.6% voted in favor of increasing the threshold to 20. A further 30.2% stated that they were indifferent or just opted to see the results without voting.