Liliana's Influence {4}{B}{B}
Sorcery
Put a -1/-1 counter on each creature you don't control. You may search your library and/or graveyard for a card named Liliana, Death Wielder, reveal it, and put it into your hand. If you search your library this way, shuffle.
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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.
Lethal Sting 87%
$0.25#18085
"As an additional cost to cast this spell, put a -1/-1 counter on a creature you control."
Scarscale Ritual 87%
$0.13#24100
"As an additional cost to cast this spell, put a -1/-1 counter on a creature you control."
Moonshadow 85%
$11.52#8935
"Whenever one or more permanent cards are put into your graveyard from anywhere while this creature has a -1/-1 counter on it, remove a -1/-1 counter from this creature."
The Reaper, King No More 85%
$0.69#6269
"Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may put that card onto the battlefield under your control. Do this only once each turn."
Vizier of Remedies 84%
$0.29#11647
"If one or more -1/-1 counters would be put on a creature you control, that many -1/-1 counters minus one are put on it instead."
Necroskitter 83%
$0.71#2975
"Whenever a creature an opponent controls with a -1/-1 counter on it dies, you may return that card to the battlefield under your control."
Melira, Sylvok Outcast 83%
$5.13#10975
"Creatures you control can't have -1/-1 counters put on them."
Encumbered Reejerey 82%
$0.13#22558
"Whenever this creature becomes tapped while it has a -1/-1 counter on it, remove a -1/-1 counter from it."
Auntie Ool, Cursewretch 82%
$0.39#6701
"Whenever one or more -1/-1 counters are put on a creature, draw a card if you control that creature. If you don't control it, its controller loses 1 life."
Flourishing Defenses 81%
$1.25#4096
"Whenever a -1/-1 counter is put on a creature, you may create a 1/1 green Elf Warrior creature token."
Lockjaw Snapper 81%
$1.07#15502
"When this creature dies, put a -1/-1 counter on each creature with a -1/-1 counter on it."
Grim Poppet 81%
$0.29#8804
"Remove a -1/-1 counter from this creature: Put a -1/-1 counter on another target creature."