The phrase "a magical tool" is correct and usable in written English.
It can be used to describe an object or device that has extraordinary or enchanting properties, often in a metaphorical sense.
Example: "In the story, the protagonist discovers a magical tool that allows them to communicate with animals."
Alternatives: "an enchanted device" or "a mystical instrument".
"When Tim Cook announced it, it sounded like such a magical tool.
A technology that was once a magical tool for communicating has somehow become a millstone round people's necks.
At the heart of the groundbreaking experimental film, entitled Capture, Milissa Payne Bradley pays sly homage to the iconic Russian classic Swan Lake - using Glass as a magical tool that transforms sea birds into young women, trapped on the beach at San Francisco's Lands End.
But it is also an almost magical tool for stabilising a whole continent, creating new markets and letting free trade and free movement build ties of interdependence.For these reasons and more, Europe's most recent expansion was not just a good idea.
The torch is a magical marketing tool, if you have access to one, use it, it will help light your way.
So they whipped out their handy ISI dispenser (handy for some; it's that magical tool that drove the foam craze) and made the mousse into a cloud.
The magical tools of Hollywood like lighting, makeup, and angles can make a 5' moderately fit model look like a 6' ripped Olympic god.
Let's give a shout out to the recently released movie Ruby Sparks, in which author Calvin, played by Paul Dano, magically conjures up his manic pixie girl character to life thanks to what looks like a 1960s Olympia (he can't be that much of a writer if he isn't even able to make his invented girlfriend love him, proof itself that even the most magical tools can't make up for talent).
And how will we make these magical tools?
I can't live without these magical tools that our amazing world of technology has given us.
