This is a macro i have designed and owe my life to many times whn i run into horde crowds (esp outside instances)The macro is simple and casts shadowfury(you need 2 b a destru lock 4 this OFC) and howl of terror quickly:
/cast [modifier:alt]Howl of Terror
/cast [nomodifier]Shadowfury
You can thus easily click (or even better assign a key "3" in my case) this macro to cast SF and immediately alt click (or alt+ assigned key) it to cast howl of terror and start off making a run for it!!!
(Be sure to assign this Macro the "?" symbol so you can see wht ur casting)
/cast [modifier:alt]Howl of Terror
/cast [nomodifier]Shadowfury
You can thus easily click (or even better assign a key "3" in my case) this macro to cast SF and immediately alt click (or alt+ assigned key) it to cast howl of terror and start off making a run for it!!!
(Be sure to assign this Macro the "?" symbol so you can see wht ur casting)