Mad Max doesn't consider Vir as a warrior but just another robot. To prove his point, he sends his robots to fight against Vir. Vir needs to keep the trust of people alive, who think of him as the greatest warrior.
Vir is undoubtedly is the greatest warrior of the city but Mad Max dosen't think so as he considers him the greatest warrior of all time. He can prove this only by defeating Vir. He invents different types of Robots to outdo Vir's power and sends Dustbin Robot, Kung-Fu-Master who are too powerful and creates lots of chaos in the city until Vir comes with an idea to defeat them.—Amit Pandey