Rangers fight threats on the level of Godzilla villains with the Zords. Without them, they face down things on the level of, say, Parasite from Superman or like… I’d say Zed is a Loki level threat. Without their blasters or other weapons they can take on monsters that are essentially Ultron drones made of rocks. With their weapons, which I expect them to have as they were not excluded in the parameters, I think they could beat, let’s say, Wenwu or Ronan.