I killed 2 bosses and 2 times I didn’t get the hook. Many thanks too
What hook ? Either post in proper english, or in proper german.
I wonder if he is talking about the Anniversary Event where the Butcher drops the transmog item.
The Butcher’s Cleaver transmog : The Butcher’s Cleaver is a guaranteed drop from The Butcher in the Anniversary event. Notice that it is a blue item (making it rather easy to pass by), but will grant you the transmog on pickup, similarly to a legendary item. It can be applied to other 1 handed axes, swords and maces
I hadn’t thought of that. I thought they were talking about killing 2 Bosses for one of the Season Journey Chapters. 
But, unless they tell us which Bosses they’re talking about, we won’t know. 