The expression "deliberate ploy" is correct and usable in written English.
You can use it to refer to an intentional strategy or plan in order to achieve a certain result. For example, "The company's decision to introduce a new line of products was a deliberate ploy to expand their customer base."
"It was kind of a deliberate ploy.
"Confusion and bafflement" is a deliberate ploy, argues Rosenberg.
Some activists have called them a deliberate ploy to neutralize dissent.
The unsettling effect is very much a deliberate ploy in the artist's work.
A deliberate ploy, we reckon, to keep his look on the right side of "annoyingly perfect".
This is a deliberate ploy to trivialise tax avoidance and we should not fall for it.
I am never quite sure if this is a deliberate formal ploy or a result of his imagination outstripping his craft.
Anthony Horowitz, who created and wrote the series, said the atomic explosion was a deliberate dramatic ploy to show "the world has changed.
Sometimes, as is suspected in the case of Georgia, the moves were a deliberate political ploy to weaken one region of the country, a certain branch of government or the political opposition.
If Graeme Souness had timed the signing and subsequent unveiling of Hakan Sukur as a deliberate psychological ploy, it could scarcely have worked better as the Worthington Cup holders eased into the last eight last night.
Skulduggery Pleasant is described by its publisher, HarperCollins, as "Buffy meets Doctor Who meets Ghostbusters", and the non-literary references are a deliberate marketing ploy - a pre-launch online campaign marketing campaign introduced Skulduggery Pleasant to children as simply a character, with little reference to whether he was in a book or on screen.
