The phrase 'dream-team' refers to an ideal group comprising of individuals who work cohesively to accomplish a common goal. While there is no single-synonym to substitute for 'dream-team,' there are plenty of related phrases that capture the essence of a group of individuals working together in harmony. Alternative synonyms could include powerhouse squad, A-list lineup, elite group, winning combination, top-notch team, or all-star team. Other phrases that convey the concept of a group of talented individuals working together seamlessly could include top-performing crew, star-studded ensemble, successful collaboration, perfect match, and high-performance team. All these words and phrases depict the idea of individuals with unique abilities and skills coming together to achieve remarkable results.