crafty as a fox

Translations
хитрый как лиса
He is as crafty as a fox when it comes to negotiating deals.
Он хитрый как лиса, когда дело доходит до заключения сделок.
Definitions
This phrase refers to someone who is very clever, cunning, or skilled at achieving their goals, often through deceit or trickery, similar to the reputation of a fox in folklore.