Thistledown Players {2}{W}
Creature — Mouse Bard
Whenever this creature attacks, untap target nonland permanent.
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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.
Triceraton Regenta 89%
$0.23#30604
"Whenever this creature attacks, untap up to one other target creature."
Tenth District Veteran 88%
$0.09#24951
"Whenever this creature attacks, untap another target creature you control."
Fear of Missing Out 87%
$2.37#2544
"Whenever this creature attacks for the first time each turn, if there are four or more card types among cards in your graveyard, untap target creature. After this phase, there is an additional combat phase."
Jangling Automaton 85%
$0.11#21680
"Whenever this creature attacks, untap all creatures defending player controls."
Copperhorn Scout 84%
$0.27#5520
"Whenever this creature attacks, untap each other creature you control."
Melee 83%
$0.33#28941
"Whenever a creature attacks and isn't blocked this combat, untap it and remove it from combat."
Scourge of the Throne 82%
$0.39#1277
"Whenever this creature attacks for the first time each turn, if it's attacking the player with the most life or tied for most life, untap all attacking creatures. After this phase, there is an additional combat phase."
Taranika, Akroan Veteran 82%
$0.30#14888
"Whenever this card attacks, untap another target creature you control. Until end of turn, that creature has base power and toughness 4/4 and gains indestructible."
Shakedown Heavy 82%
$0.35#6566
"Whenever this creature attacks, defending player may have you draw a card. If they do, untap this creature and remove it from combat."
Apes of Rath 80%
$0.28#25240
"Whenever this creature attacks, it doesn't untap during its controller's next untap step."