The phrase "wreaks havoc" is commonly used to describe a situation that causes widespread harm, damage or chaos. There are several synonyms for this phrase, such as "causes chaos," "unleashes mayhem," "creates turmoil," "sparks pandemonium," "induces turmoil," and "triggers disorder." Other suitable synonyms include "raises hell," "starts a commotion," "stirs up trouble," "disturbs the peace," and "conjures up chaos." These synonyms can effectively convey the idea of a situation that has a disruptive and negative impact, and can be useful when trying to create a vivid narrative or description of such an event.