What is the intended effect of the hyperbole "Were, on the quarry of these murder’d deer / To add the death of you"?
to compare the end of Macduff’s family to the deaths of animals
to reveal how the tyrant was able to eliminate Macduff’s household
to imply how awful it would be to tell Macduff how his family perished
to persuade Macduff to believe that deer were hurt instead of his family