The phrase "a potent example of" is correct and usable in written English.
You can use it to highlight something that serves as a strong or effective illustration of a particular concept or idea.
Example: "The recent climate report is a potent example of the urgent need for environmental action."
Alternatives: "a strong illustration of" or "a compelling instance of".
They're also a potent example of globalization.
Brad Weston, with the powerful job of co-president for production at Paramount Pictures, is a potent example of this.
Its immersive scale, punchy color, and bold graphics make it a potent example of the impact that printed matter can have.
The slow pace of change in Bulgaria and the lack of convictions in high-profile corruption cases have served as a potent example of the problems of bringing fragile ex-Communist nations into the European mainstream.
The same morning, the first regularly scheduled flight from the United States in more than 50 years landed in Havana, a potent example of the newly opened doors between the former rivals.
Humphrey (1895-1958) is well represented in "Duo-Drama," a relatively minor work - set to music by Roy Harris - that offers a potent example of her gift for probing human relationships in surprisingly abstract, stylized terms.
In succeeding, he'd provide a potent example to his fellow downtrodden of what was possible through grit, determination and a necessary leap of faith.
What could be a more potent example of a generational shift of brand loyalty than the son of Al Qaeda joining company ISIS?
You couldn't wish for a more potent example of R&B's ongoing imperiousness, although there were plenty of others in 2016.
Safety and environmental regulations often shift with control of the White House, but the Bush administration's approach to coal mining has been a particularly potent example of the blend of politics and policy.
This may just be a particularly potent example of what is known as Godwin's law, which has it, more or less, that every argument will eventually devolve into one side referring to the other as Nazis.
