Antonyms for the phrase "leaves in ruins" could include "restores to glory," "builds up," "reconstructs," or "reestablishes." These words denote the opposite of destruction and highlight the idea of improving or creating something new. Other antonyms may include terms like "rejuvenate," "renew," or "revitalize," all of which suggest the idea of renewal and regeneration. Using antonyms can help to create a more positive tone and convey ideas of hope and progress. In contrast, the use of "leaves in ruins" suggests a sense of devastation, emphasizing the negative consequences of neglect or failure.