Nature's Will 
Enchantment
$6.38 #2594 1.04 22.1 years
Whenever one or more creatures you control deal combat damage to a player, tap all lands that player controls and untap all lands you control.
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Cards similar to Nature's Will 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 Reclamation82%
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"At the beginning of your end step, untap all lands you control."
Bumi, Unleashed74%
$3.80↓#3573↓0.45↓0.9 years↓
"Whenever this card deals combat damage to a player, untap all lands you control. After this phase, there is an additional combat phase. Only land creatures can attack during that combat phase."
Port Razer74%
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"Whenever this creature deals combat damage to a player, untap each creature you control. After this phase, there is an additional combat phase."
Initiate's Companion73%
$0.19↓#20288↓0.26↓9.5 years↓
"Whenever this creature deals combat damage to a player, untap target creature or land."
Mana Skimmer71%
$0.13↓#28120↓0.68↓20.0 years↓
"Whenever this creature deals damage to a player, tap target land that player controls. That land doesn't untap during its controller's next untap step."