/cast [nostance:3]Berserker Stance;Berserker Rage
/cast [nostance:2]Defensive Stance
This macro will do the following:
If you are not in Berserker Stance, it will switch you to Berserker Stance. When hit again, it will activate Berserker Rage, and when hit a 3rd time, it will switch you back to Defensive stance.
This macro is great for mobs that fear, such as Nightbane. When the fear is incoming, just hit your macro 3 times to activate Berserker Rage and make you immune to fear and keep your raid from getting wiped!
Not only that, but you can use it while doing normal groups to help generate extra rage