This looks for the {T} symbol. The phrase “tap an untapped creature you control” isn’t the same and doesn’t count.
01-05-2006
wotc
If an activated ability with {T} 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.
Random a card of Magic: The Gathering (MTG), but you can also roll the D20 dice, random a Planeswalker, have fun with the random rules and more.