I actually did the Rotation wrong at the beginning. Before Weapon Swap Decapitate skill 2 and weapon swap. In the last Rotation showcase i did it corect.
And the part with Head Butt i explained was also wrong. you always can fill up the adrenalin with 2 skills in Berserker mode. Sorry about that the Build is still kind of new to me :_)
Snowcrows full breakdown: https://snowcrows.com/builds/warrior/...