"Servant god" can be replaced with numerous synonyms that evoke similar concepts and meanings. One such synonym would be "humble deity," conveying a sense of modesty and selflessness associated with servitude. Another option could be "subordinate divinity," highlighting the subordinate role the god plays in serving a higher power such as a king or supreme being. One might also use "devotee deity" to emphasize the god's dedication and loyalty to their master or the people they serve. Finally, "vassal god" could be aptly employed, emphasizing the subjugated status of the servant deity and their allegiance to a more powerful figure.