is the best general build for hunter solar assasins cowl ?

[round iron]

hello

[haughty sleet]

depends what content

you should be fine for anything at or below legend AND where boss dps is a non-issue

if you are doing champion heavy content at very high light levels like master NFs and newer master raids you might find nighthawk to be a better pick

or SES blade barrage

[sharp cape]

no
arc cowl is good because it builds up dmg to break even champions solo. solar cowl says you're going invis against ads you can kill with one knife. just survive more.

solar even comes with restoration. activate it, extend with solar kills, push