I kind of dig the title of the thread. When I think attack, rear delts are about the furthest thing from my mind. Sort of like Savage Bunny Rabbits.
Listen to bignate. When you do your barbell rows, don't be one of those morons who does the standup hump. Your torso needs to be parallel to the floor or as close as you can get it while maintaining good posture. This will get the lats working directly against the force of gravity - you'll also get a ton more delt emphasis when doing this properly. Between that and some form of pullup, you should be materially covered. Get better at those movements and increase your best set of X (5, 8, 10 whatever). If you feel the need, you can do the rear delt isolation work but if increasing your row and pullup capacity doesn't impact your delts - nothing will.