Hey thar!
My first post here and I decided I could be useful.
I found this "bug" by mistake with my Undead Warrior.
As some of you know, on some servers undead has "Shadowmeld".
So i suppoce this only work with Undead and Night Elf Warriors.
1. You need the talent "Improved Berserker Stance" which grants 10% extra attackpower in zerkstanze.
2. In berserker stance, use battleshout.
3. Use Shadowmeld.
4. ASAP Change stance to "Defensive Stance".
5. Change back to "Berserker Stance".
6. ????
7. Profit
You can repeat this step how many teams you can but I have some theories.
I think when you use "Shadowmeld" you get to an own stance ("Stealth Stance"). But AP stays the same so each time you change to zerkstanze you get 10% extra AP. But one downside I think, you take 10% extra damage each time you do this.
GL! :wave: