Question : Elemental weapon

Hi,

I want to make a character that's dagger + crit. I want to try being full elemental (using a dagger with flat ele on it instead of %phys and flat phys). I want to use flat ele on my gear and % elemental damage with weapons etc.

I am not sure what is the real advantage of doing this because the game benefits you a lot with Phys to Ele auras and gems.

Since leeching will do nothing, how do you guys suggest to make my mana ? Do you think the cost of spectral throw is very high at high level or it's easily maintainable ? I also want to be able to use all flat damage auras (Herald Ice / Lightning + Anger) with aura reduce in tree.

Any1 got experience with this?
Thx

What you are looking for is an elemental buzzsaw build: scaling damage by using heralds+auras along with flat elemental damage and weapon elemental damage mods on gear instead of physical damage. Not sure if this works well after the changes to auras/reduced mana gem.
Anyway, to sustain your main skill you usually use a blood magic gem.