If China & Russia do energy deals in non-dollars, what will US do?

In the game of 13 dimensional chess, how would our government counter that?

What would be the effect on our economy?

Also, how is our "get tough" approach to Russia and China going to change that for the better?

Most people do not take kindly to being bullied and threatened, and might choose to retaliate in ways that makes it harder for you to keep bullying.