Stasis {1}{U}
Enchantment
Players skip their untap steps.
At the beginning of your upkeep, sacrifice this enchantment unless you pay {U}.
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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.
Dance of Many 95%
#15877
"At the beginning of your upkeep, sacrifice this enchantment unless you pay {U}{U}."
Sunken City 95%
#27315
"At the beginning of your upkeep, sacrifice this enchantment unless you pay {U}{U}."
Damping Field 90%
$8.60#27078
"Players can't untap more than one artifact during their untap steps."
Winter Moon 90%
$0.41#2720
"Players can't untap more than one nonbasic land during their untap steps."
Shisato, Whispering Hunter 87%
$0.54#20588
"Whenever this card deals combat damage to a player, that player skips their next untap step."
Solitary Confinement 84%
$0.49#4060
"At the beginning of your upkeep, sacrifice this enchantment unless you discard a card."
Nicol Bolas 83%
$1.43#12218
"At the beginning of your upkeep, sacrifice this card unless you pay {U}{B}{R}."
The Blackstaff of Waterdeep 80%
$0.20#19806
"You may choose not to untap this card during your untap step."
Contamination 80%
$17.70#7833
"At the beginning of your upkeep, sacrifice this enchantment unless you sacrifice a creature."