Recommended Build Direct link to this section
Fel-Scarred is the recommended build here.
Tips and Tricks Direct link to this section
Fractillus is just a WeakAura check boss. Follow your WeakAura and it'll die. Again, there isn't much for DH specifically on this fight. It's worth using Blur on any mythic break sets, and you can Netherwalk the large spread if you think you'll die to it. You'll probably be dashing around a decent bit this fight, so try to always come back to the safe lane so you're not getting hit by extra walls.