This is a late game build which means that in the early game you wont do a lot.The idea is that you destroy an enemy hero during a teamfight easily.the problem is that heroes like falstad or valla that have a dash they will run away from you or most of your dmg.having a malfurion or someone with stuns or roots is great.or at lvl 16 instead of berserker you can get the 1sec root but i think that berserk is better because you can get your dmg faster and more movement speed is always great just remember bloodlust first then berserker cause you have only 4sec.Keep in mind that i am not in the alpha so i havent tried it.