Following the discussion and comparison with The Furnace, Skorn could be something like <100-125%> CHD and <7-10%> CHC against elites. Since you can't dual wield them you would either have to give up a Cube item or another legendary weapon to have both effects.
I personally would like to see it play around with Area Damage and move forward into making it a more barb specific weapon. Maybe area damage procs applies Rend? Area Damage procs hit single targets? Both?