Well I finally did it, I used 4 tomes of knowledge...
Huskar Burning Spear + Berserkers Blood build
Spear Rain: New ability: spear rain. Cost health to call waves of Burning Spears hitting the area.
Boiling Blood: Every 1% HP cost for Burning Spear grants 2 extra strength.
Last Stand: Berserker's Blood provides ATK bonus.