Winter's Rest {1}{U}
Snow Enchantment — Aura
Enchant creature
When this Aura enters, tap enchanted creature.
As long as you control another snow permanent, 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.
Freyalise's Radiance 85%
$0.23#31220
"Snow permanents don't untap during their controllers' untap steps."
Stunning Strike 84%
$0.10#23371
"As long as enchanted creature isn't legendary, it doesn't untap during its controller's untap step."
+2 more matching lines
Venarian Gold 82%
$0.44#30158
"Enchanted creature doesn't untap during its controller's untap step if it has a sleep counter on it."
+1 more matching line
Fall from Favor 81%
$0.24#14681
"Enchanted creature doesn't untap during its controller's untap step unless that player is the monarch."
+2 more matching lines
Tangle Kelp 81%
$0.78#30895
"Enchanted creature doesn't untap during its controller's untap step if it attacked during its controller's last turn."
+2 more matching lines
Bonds of Quicksilver 81%
$0.09#27180
"Enchanted creature doesn't untap during its controller's untap step."
+1 more matching line
Apathy 81%
$0.18#23400
"Enchanted creature doesn't untap during its controller's untap step."
+1 more matching line
Containment Membrane 81%
$0.06#24835
"Enchanted creature doesn't untap during its controller's untap step."
+1 more matching line
Singing Bell Strike 81%
$0.04#22497
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Ringing Strike Mastery 81%
$0.15#14343
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Capture Sphere 81%
$0.09#18347
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Locked in the Cemetery 81%
$0.11#24185
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Waterknot 81%
$0.15#21514
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Dehydration 81%
$0.05#28570
"Enchanted creature doesn't untap during its controller's untap step."
+1 more matching line
Unquenchable Thirst 81%
$0.02#29276
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Containment Protocol 81%
$0.28#29119
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Charmed Sleep 81%
$0.10#15232
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Sleep Magic 81%
$0.15#14387
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines
Bind the Monster 81%
$0.19#22704
"Enchanted creature doesn't untap during its controller's untap step."
+2 more matching lines