Sentence examples for a devil from inspiring English sources

The phrase "a devil" is correct and usable in written English.
It can be used in various contexts, often to refer to a mischievous or malevolent person or entity, or in a metaphorical sense to describe someone's behavior.
Example: "He was a devil in disguise, charming everyone while plotting his next move."
Alternatives: "a demon" or "a fiend".