Festering Newt {B}
Creature — Salamander
When this creature dies, target creature an opponent controls gets -1/-1 until end of turn. That creature gets -4/-4 instead if you control a creature named Bogbrew Witch.
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Cards that do something similar 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.
Raffine's Silencer 95%
$0.22#16195
"When this creature dies, target creature an opponent controls gets -X/-X until end of turn, where X is this creature's power."
Splatter Goblin 95%
$0.12#25311
"When this creature dies, target creature an opponent controls gets -1/-1 until end of turn."
Shambling Goblin 95%
$0.17#21058
"When this creature dies, target creature an opponent controls gets -1/-1 until end of turn."
Grim Physician 95%
$0.18#21871
"When this creature dies, target creature an opponent controls gets -1/-1 until end of turn."
Loathsome Catoblepas 92%
$0.02#31491
"When this creature dies, target creature an opponent controls gets -3/-3 until end of turn."
Gnawing Vermin 85%
$0.33#9740
"When this creature dies, target creature you don't control gets -1/-1 until end of turn."
Undead Executioner 82%
$0.07#29441
"When this creature dies, you may have target creature get -2/-2 until end of turn."