Ok, it's what every warrior is doing since the 3 adds spawn can be well synchronised with it
Added to my first post:
It's the same for mythic +:
I used this spell filter for both logs: "Kil'jaeden's Burning Wish, Warbreaker, Colossus smash, Execute, Cleave, Whirlwind, Slam, Battle Cry, Mortal Strike, Ravager"
I'm wondering, what are you guys using as base of information for arms warriors ?
The Arms Compendium is a pretty well done guide, from a bunch of experienced arms warriors and theorycrafters.
Battlecry should be used when we pop Ravager, or Bladestorm, for both AOE and ST. Not with warbreaker.
And Kil Jaedens burning wish is used while only 1 target out of 4 is affected by colossus smash, that's not good.