The phrase "a powerful tool to" is correct and usable in written English. You can use it whenever you want to refer to something that can be used to accomplish a goal or task. For example: "Computers represent a powerful tool to help students learn and develop new skills.".
"We have a powerful tool to prevent cancer.
At its best, it is a powerful tool to deconstruct our notion of reality.
Revisiting historical events through film can be a powerful tool to help people cope with tragedy.
Either way, it's a powerful tool to maintain weight stability, without deprivation.
"Music is a powerful tool to get the youth interested in politics".
It's such a powerful tool to weave words and melody together like that.
"They view the Internet as a powerful tool to lead Vietnam into the new economy".
Since I tried Ludwig back in 2017, I have been constantly using it in both editing and translation. Ever since, I suggest it to my translators at ProSciEditing.
Justyna Jupowicz-Kozak
CEO of Professional Science Editing for Scientists @ prosciediting.com