Artefact

,

: Dégagez la créature ciblée qui a une capacité activée avec

dans son coût.
This looks for the
symbol. The phrase “tap an untapped creature you control” isn’t the same and doesn’t count.
If an activated ability with
in its cost is granted to a creature by an effect (such as Hypervolt Grasp’s effect, for instance), Magewright’s Stone can untap that creature.