you dont need css and nephalem ammy as veng/foh.

ive tried that it didnt do much more damage. Veng seems to work like charged strike of amazon. The casterpart of the attack always hit, but the melee hit is pretty slow and is based on AR. That way you will barely hit bosses and the extra lightning damage from holy shock isnt really worth it in my opinion.

Ive then tried playing with leorics folly, veng/foh and diablo amu (mostly for 5% maxres). Ive maxed out my res, got 5,5k life and around 80k FoH damage. Havent skilled blessed hammer ofcourse, since i went full lightning with TF.

Its pretty nice to play if the skellies tank and you shoot at the monsters/bosses from far behind with Foh. It does surprisingly well damage but ofcourse there are classes/builds out there with more damage, thinking of wwsin / nadodruid / FH melee druid.