There are several synonyms for the phrase "casts stone at." Some alternatives include: throws shade, hurls insults, slings mud, flings accusations, tosses jabs, launches criticisms, pelts attacks, fires barbs, chucks brickbats, and pitches digs. Each of these synonyms conveys the act of attacking or insulting someone with words or actions. It's important to keep in mind that while words can be powerful, they can also have serious consequences. It's always best to choose our words carefully and avoid unnecessarily hurting others with our actions.