Inevitable End {2}{B}
Enchantment — Aura
Enchant creature
Enchanted creature has "At the beginning of your upkeep, sacrifice a creature."
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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.
Necrotic Plague 93%
$0.36#17664
"Enchanted creature has "At the beginning of your upkeep, sacrifice this creature.""
+1 more matching line
Pendrell Flux 89%
$0.13#26602
"Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you pay its mana cost.""
+1 more matching line
Coral Net 86%
$0.21#29150
"Enchanted creature has "At the beginning of your upkeep, sacrifice this creature unless you discard a card.""
Oni Possession 81%
#26545
"At the beginning of your upkeep, sacrifice a creature."
+1 more matching line
Eldrazi Monument 80%
$9.84#1430
"At the beginning of your upkeep, sacrifice a creature. If you can't, sacrifice this artifact."