The phrase "a ploy of" is correct and usable in written English.
It can be used to describe a strategy or tactic employed to achieve a specific goal, often with a connotation of deceit or manipulation.
Example: "The company's announcement was seen as a ploy of distraction from the ongoing legal issues."
Alternatives: "a tactic of" or "a scheme of".
At dinner that night, she mentioned my rival heir -- the museum -- so coyly, it sounded less like a decision than a ploy of some kind.
It was a ploy of theirs to pretend not to understand, to frown and simulate confusion because, in any conversation, it was convenient sometimes to appear to be at a loss.
As alarm about the choking air and the frightening rate of illnesses grew, the party bosses at first attempted to suppress the protests, deeming ecological concerns a ploy of the West to weaken socialism.
This Bond installment is weighty with calculation: it feels like a ploy of demographically targeted marketing, with the personal drama attached to the espionage, the highly specific motives grafted to the thriller plot, looking like a studio decision to attract women viewers rather than like a mapping of any person's imagination.
"He's taken offence to this – it's a ploy of timewasting, I'll admit this, but everyone who has ever played the game as done it, it's nothing new – and he's come from backward point to silly point, walking in my direction, and hurled a whole lot of abuse at me. "Those who know me and those who have played against me know I will not tolerate that type of thing.
It's egregious of the government to gag healthcare providers, and it's unconscionable to enlist them in a ploy of obfuscation.
Mr. Austin found himself so interested in Ms. Maurer that he resorted to a ploy out of a sitcom to learn if she returned his interest.
Is any of this a ploy for negotiation of the new Concorde Agreement that governs the teams and that expires soon? A. I have no idea, but it certainly won't make any difference.
This may be just a ploy to convince you of the legitimacy of his or her business.
Her opponents considered it a ploy to deflect criticism of her administration.
He claims the accusation was a ploy to get control of the apartment and the children.
