When this creature dies, proliferate. (Choose any number of permanents and/or players, then give each another counter of each kind already there.)
Legal in
Pioneer, Modern, Legacy, Vintage, Pauper, Commander, Oathbreaker, Brawl, Historic, Timeless
Rulings (13)
A player with ten or more poison counters loses the game. This is a state-based action and doesn't use the stack. In other words, it happens immediately and players can't respond to it, just like a player losing the game due to having 0 or less life.
2023-02-04
If a creature with toxic deals combat damage to a creature or planeswalker, or if it deals noncombat damage, toxic has no effect and no player gets poison counters.
2023-02-04
Conversely, replacement effects that apply to the number of counters put on a player can modify the counters placed this way. For example, Vorinclex, Monstrous Raider's last two abilities can apply to counters placed this way.
2023-02-04
Multiple instances of toxic are cumulative. For example, if a creature has toxic 2 and gains toxic 1 due to another effect, combat damage that creature deals to a player will cause that player to get 3 poison counters.
2023-02-04