Holy clover is a term used to describe the four-leafed clover, which is considered lucky by many people. If you're looking for synonyms for the term holy clover, you could consider using the term lucky clover, fortunate clover, blessed clover, or even magical clover. These terms all imply that the clover is somehow special or blessed, and could be used interchangeably with holy clover depending on the context. Other terms that could be used to describe the four-leafed clover include rare clover, unique clover, and auspicious clover. Ultimately, the choice of synonym will come down to personal preference and the intended tone of the writing.