The phrase "a unique power to" is correct and usable in written English.
It can be used to describe a specific ability or influence that is distinct or exceptional in nature.
Example: "The new technology has a unique power to transform the way we communicate."
Alternatives: "an exceptional ability to" or "a distinctive capacity to".
Oil seems to have a unique power to confound, but Citi's thinking seems logical.
Ellroy puts it best in the introduction: "This society grants women a unique power to seduce and destroy.
It has a unique power to initiate lawful collective security action to preserve international peace and security.
African music has a unique power to move and unite audiences in this way, and one hopes more city streets will be set similarly aglow this summer.
But, as one officer in the 21st Georgia recognized, Jackson possessed a unique power to inspire and lead his often outnumbered troops.
Urban centers have a unique power to fuel creative ideas and to spread them quickly, generating viable market conditions to bring these ideas to full scale.
The United States Court of Appeals for the Ninth Circuit has emphasized that "a prosecutor has a special duty commensurate with a prosecutor's unique power, to assure that defendants receive fair trials".
As chairman of a huge media conglomerate, Mr. Case will no longer have a founder's unique power to rally troops around his message.
But mostly it sings of itself, an anthem to television's unique power to turn a series of understated performances into sustained magnificence.
For Labour, on the other hand, development matters because of its unique power to energise a bloc of highly committed, activist-minded voters who are natural Labour supporters.
After 11 September 2001, the US had a second big chance to use its unique power to reorganise the world.
