What you are trying will not work as EM is off the GCD. It will cast on the first press so will be up when you cast your CL. You need to add an artificial delay to prevent this ie

/castsequence ,,,,,,,,,,,,,,,,EM,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, (etc)