Become a Death Knight or Lich for the low, low cost of 3 feats.
Kinda surprised no update to Death Domain since Oathbreaker got UA last year.
Survey will be available on April 9th.
DNDBeyond landing page https://www.dndbeyond.com/sources/dnd/ua/villainous-options
Designer insights https://www.dndbeyond.com/posts/2150-designer-insights-from-unearthed-arcana-villainous
I feel like you could give the entire “Path of the Lich” to the School of Necromancy subclass and hardly move the power needle. It is so bad in my opinion without even considering the opportunity cost of the missing 3 feats.