iron fist
iron hand

They will turn to a man with an iron fist, do you see?

Then all that will be left is the iron fist.

He is now college president and rules with an iron fist.

Iron Fist was on hand to stop him, however, and after a battle, the truth came out.

Not until a single man rules it all with an iron fist.

Congress(I) government came down on movement participants with an iron fist.

The thought was like an iron fist to the gut.

In his early years he ruled with an iron fist.

In the years to come, Jack ran the studio with an iron fist.

He would show his colors and rule the world with an iron fist.