Fynn, the Fangbearer 

Legendary Creature — Human Warrior
$0.17 #2731 1.31 5.7 years
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.)
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Cards similar to Fynn, the Fangbearer expected a card that isn't here?
Reports become test cases the matcher is graded against before an update ships. Delvefall isn't a chatbot guessing, it compares the printed rules text of every card with plain math, and examples like yours decide which differences should count.
Virulent Silencer87%
$0.26↑#7285↓1.00↓1.2 years↓
"Whenever a nontoken artifact creature you control deals combat damage to a player, that player gets two poison counters."
White Widow, Yelena Belova78%
$0.73↑#17307↓0.21↓0.3 years↓
"Whenever a creature you control with deathtouch deals combat damage to a player, put a +1/+1 counter on it."
+1 more matching line
Pit Scorpion76%
$0.08↓#27870↓0.31↓32.4 years↑
"Whenever this creature deals damage to a player, that player gets a poison counter."
Marsh Viper73%
$0.08↓#23235↓0.59↓32.2 years↑
"Whenever this creature deals damage to a player, that player gets two poison counters."
Aveline de Grandpré72%
$0.47↑#7560↓0.24↓2.3 years↓
"Whenever a creature you control with deathtouch deals combat damage to a player, put that many +1/+1 counters on that creature."
+1 more matching line
Necrogen Rotpriest72%
$0.19↑#7036↓0.63↓3.7 years↓
"Whenever a creature you control with toxic deals combat damage to a player, that player gets an additional poison counter."
Etali, Primal Conqueror // Etali, Primal Sickness71%
$26.11↑#813↑1.85↑3.5 years↓
"Whenever this card deals combat damage to a player, they get that many poison counters."