Locked in the Cemetery {1}{U}
Enchantment — Aura
Enchant creature
When this Aura enters, if there are five or more cards in your graveyard, tap enchanted creature.
Enchanted creature doesn't untap during its controller's untap step.
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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.
Bubble Snare 94%
$0.14#20409
"When this Aura enters, if it was kicked, tap enchanted creature."
+1 more matching line
Unquenchable Thirst 92%
$0.02#29276
"When this Aura enters, if you control a Desert or there is a Desert card in your graveyard, tap enchanted creature."
+2 more matching lines
Sleep with the Fishes 92%
$0.23#19206
"When this Aura enters, tap enchanted creature and you create a 1/1 blue Fish creature token with "This token can't be blocked.""
+1 more matching line
Singing Bell Strike 91%
$0.04#22497
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Ringing Strike Mastery 91%
$0.15#14343
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Capture Sphere 91%
$0.09#18347
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Colossification 91%
$0.67#3937
"When this Aura enters, tap enchanted creature."
+1 more matching line
Containment Protocol 91%
$0.28#29119
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Charmed Sleep 91%
$0.10#15232
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Winter's Rest 91%
$0.28#12505
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Claustrophobia 91%
$0.05#18730
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Starlight Snare 91%
$0.12#20167
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Sleep Paralysis 91%
$0.17#22658
"When this Aura enters, tap enchanted creature."
+2 more matching lines
Runner's Bane 91%
$0.05#28830
"When this Aura enters, tap enchanted creature."
+1 more matching line