Crumbling Ashes {1}{B}
Enchantment
At the beginning of your upkeep, destroy target creature with a -1/-1 counter on it.
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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.
Lichenthrope 82%
$0.60#28461
"At the beginning of your upkeep, remove a -1/-1 counter from this creature."
Glistening Oil 81%
$12.56#6769
"At the beginning of your upkeep, put a -1/-1 counter on enchanted creature."
Biting Tether 81%
$0.26#25912
"At the beginning of your upkeep, put a -1/-1 counter on enchanted creature."