Here are some examples of how "of yore" is used:
* "The castle stood as a testament to the grandeur of a bygone era, a relic of a time of yore."
* "The legends of yore spoke of a magical land hidden deep within the forest."
* "The old man recounted tales of yore, stories of his youth spent in a world far removed from the present."
While "of yore" is less common in everyday speech, it's still a useful phrase for adding a touch of formality or historical flair to your writing.