Question about my Deathguard Reaper build and Nightfall mechanics

Grim Dawn Classes, Skills and Builds
1

Does Nightfall effect the primary target like Explosive Strike for Fire Strike? I believe so cause it increases Shadow Strike sheet damage.

Assuming it does, im torn between the two variations of my build cause i’m lacking skill points:

1 - Reaper, Level 100 (GD 1.1.9.7) - Grim Dawn Build Calculator
this is the old variation, with maxed out Dread (which is a lot of DoT damage).

2 - Reaper, Level 100 (GD 1.1.9.7) - Grim Dawn Build Calculator
this is the version im considering due to Nightfall (full Cold to Acid convertion) effecting SS, however its missing point in Dread, Spectral Binding, 2 less Phys Res (this is whatever) and some HP.

Which would you pick and why? Thank you.

2

Nightfall also affects the primary target.
I’d go with the nightfall variant - simply cause you have sort of AoE with it, otherwise I find it boring.
30% global cold conversion is not too much though …

3

Set has 80% global cold to acid conversion on top of helm (100 total)
I have a huge Bone Harvest for AoE on a 1.5 sec cd but nightfall seems good (for the first time in my life) to pass up here i think. Thanks for clarification.