I wouldnt suggest this build for first character, you want to have some gear waiting for ES phase. Especially on HC.
Use Freezing pulse in early game, change to dagger above 20 when you manage to get a decent dagger, Mightflay op! Grab health nodes in early game from the shadow tree. Respec to CI at around Merciless ledge, you want to have something like ~300ES chest, ~200ES helmet and ~300ES Shield waiting.
If you are using Lightning Strike, grab the lightning damage node on shadow tree.
Good items to have:
EYE OF CHAUYLA, a must have
Maligaros virtuosity, very good dps boost
Sin treks are decent boots for very very good price.
Auras: Discipline and Hatred with reduced mana
Dual Strike 4L: DS - Melee phys - Melee phys on full life - Faster attacks
Lightning strike 4L: LS - Multistrike - LMP - Faster attacks
Lightning strike 5L: LS - Multistrike - LMP - Faster attacks - Power Charge on hit
Lightning strike 6L: LS - Multistrike - LMP - Faster attacks - Power Charge on hit - Crit dmg
Flicker Strike 6l: Multistrike - Melee splash - Faster attacks - Flicker - Power Charge on hit - Crit dmg
The youtube videos run is the first test run i made with flicker. I have life flask just to remove frozen because it uses so few charges on use.