Magewright's Stone {2}
Artifact
{1}, {T}: Untap target creature that has an activated ability with {T} in its cost.
click a line to search just that ability, click more to combine them
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.
Fifty Feet of Rope 91%
$0.17#15744
"{3}, {T}: Target creature doesn't untap during its controller's next untap step."
The Moment 88%
$0.31#13667
"{2}, {T}: Untap target creature you control. It phases out until this card leaves the battlefield."
Ebony Horse 85%
#24231
"{2}, {T}: Untap target attacking creature you control. Prevent all combat damage that would be dealt to and dealt by that creature this turn."
Saryth, the Viper's Fang 84%
$4.24#1226
"{1}, {T}: Untap another target creature or land you control."