The phrase "a favored tool of" is grammatically correct and can be used in written English.
It is typically used to describe something or someone as being highly valued or preferred in a specific context. Example: The smartphone has become a favored tool of communication for many people in today's society.
But Harakat, they said, has been a favored tool of the ISI.
In the nineteen-nineties, war became a favored tool of people who cared passionately about human rights.
According to the Pakistan-based Afghan Islamic Press, he singled out the United Nations as being a favored tool of "the infidel world".
What started as a favored tool of the Bernie Sanders campaign has blossomed into a new method of communicating at scale.
They will never succeed in it!," he said in a post on Instagram, a favored tool of mass communications for the leader.
Similarly, future investigators will likely have new tools (or a favored tool) for assessing exposure to environmental chemicals.
Synchrotrons have long been a favored tool among physicists, chemists, and materials scientists, making funding for the stadium-sized machines the province of the Department of Energy (DOE).
But it does seem to have been a natural, if challenging, match, for the sensibilities of Mr. Wilson, whose favored tools of presentation are visual and aural, as against narrative, an approach to storytelling that has more in common with a symphony conductor or a painter than a director of conventional drama.
A second favored tool is the Iowa Electronic Market.
We've seen plenty of examples of architectural projection mapping transforming the majestic facades of state capitols, government buildings and historic landmarks, and it's become a favored visual tool to enhance the performances of musicians the world over.
For making fine adjustments in an aluminum body panel, one of his favored tools is one of those aforementioned leaf springs, found alongside the road.
