I use this a lot, it works great for me with everything else I have
/focus (name)
/target [target=focustarget]
/startattack
/target [target=name, nodead, help, exists]; [target=name, nodead, help, exists]; [target=name, nodead, help, exists]; [target=name, nodead, help, exists]
/follow focus
/assist

I just noticed this macro is broke, its a copy from something else that was modfied, and should be fixed but it works atm.