We need Vaders shadow guards

They are cool, but I think they won't be added, as there are characters far more important than them, they are not canon and in rogue one film they could have included them but instead they put some red guards protecting vader

That'd be cool. :)

I'd rather Dr Aphra, with Vader and/or Scoundrel synergies. She could bring Vader to top meta if her kit is done correctly.

+1