Reset {U}{U}
Instant
Cast this spell only during an opponent's turn after their upkeep step.
Untap all lands you control.
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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.
Wilderness Reclamation 87%
$2.14#926
"At the beginning of your end step, untap all lands you control."
Innocuous Researcher 85%
$0.26#12932
"At the beginning of your end step, you may untap all lands you control. If you do, you can't cast spells until your next turn."
Siren's Call 83%
$0.19#21554
"Cast this spell only during an opponent's turn, before attackers are declared."
Inventive Iteration // Living Breakthrough 81%
$0.30#9276
"Whenever you cast a spell, your opponents can't cast spells with the same mana value as that spell until your next turn."