Winter Moon {2}
Artifact
Players can't untap more than one nonbasic land during their untap steps.
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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.
Damping Field 91%
$8.60#27078
"Players can't untap more than one artifact during their untap steps."
Shisato, Whispering Hunter 86%
$0.54#20588
"Whenever this card deals combat damage to a player, that player skips their next untap step."
Rising Waters 85%
$2.05#17155
"At the beginning of each player's upkeep, that player untaps a land they control."
Hokori, Dust Drinker 85%
$1.62#13615
"At the beginning of each player's upkeep, that player untaps a land they control."
Winter Orb 84%
$16.05#3301
"As long as this artifact is untapped, players can't untap more than one land during their untap steps."
Sword of Feast and Famine 83%
$38.74#539
"Whenever equipped creature deals combat damage to a player, that player discards a card and you untap all lands you control."
Tsabo's Web 83%
$32.74#19333
"Each land with an activated ability that isn't a mana ability doesn't untap during its controller's untap step."