First Build for review
The only utility I’d change is spectral wall for epidemic, you have alot of conditions going might as well make the best of it.
Traits are a bit weird though.
30 in death magic seems like a waste, especially since spiteful vigor only triggers off our 6 skill. You picked that to maximize BiP’s might I think? I’d swap 10 from it into curses and pick Master of corruption, you have 2 ways to transfer conditions and the good heal so corruption skills are as useful as they get.
I personally dislike blood magic so I’d also take those 10 and put them into curses, this allows you to get Lingering Curse and increases your overall precision for quite a bit, making the 20 in Soul Reaping alot more useful.
Item stats are really up to you, but since you have so much condition focus I suggest looking into stuff with condition damage.