While I am just starting to come back into things

The optimal thing to do in order to take advantage of art of war for ret paladins is as follows

/castsequence crusaderstrike,blah,blah,blah,blah
/cast exorcism
/stopcasting

this will only use the exorcism when it is procced... also good for soloing by just adding it like this to any macro

/cast crusader strike
/cast exorcism
/stopcasting