This is my first time pvping with a DK name Tankerella

Firstly this is my talent build

[I cant post my talent build cos im new so can u post the most used recommended unholy build]

Any recommended changes will be welcome.

What melee skills are my main for pvp isit icy touch plague scourge and festering
Or do i use icy plague festering and necrotic?
Or am i wrong completely.

How do i use dark simulacrum skill and dark transformation skills effectively?

Also whats a good 2v2 setup.

Thanks in advance