I'm talking in terms of pure strength and powers here.

I know a lot of Batman villains doesn't have superpowers so I guess they won't be in this thread. But I'm sure there has to be one who is ridiculously powerful. I'm thinking Clayface or Dr.Phosphorus?

Feel free to bring up villains from the 60s and 70s as well.

Off the top of my head I also think of that Scarecrow monster Batman had to fight once. He seemed crazy powerful but was short-lived.