Yeah. Don't play d2r ^^ I play original d2 still, reset in a month.
Lol. But. Nova sorc is good. But here's my secret tip to it: Start with skilling static field instead. The perfect boss killer for normal, and great help in nightmare. When you get it to like 15+ level, you start hitting about the entire screen, good distance, SAFE distance. Even for hardcore it's especially great.
I really do recommend hardcore as well. Enhances the experience greatly!
Personally i'm going with poison javazon+dagger on switch, and a new personally made build, the grim reaper necro! Both gonna do tandem runs and focusing on quest bugged boss runs this season. I've done traviruns exclusively the last 2 ladder season, yes that's right ... from level 21 in normal, you get quite decent experience, and they can drop decent stuff. In nightmare it gets better. In hell, they can drop great stuff. But ... for variation, going back go quest bugged boss runs the next season.
So. Like. Necro = Summons+lower resist.
Barb = Life boost, barb may be boring, but that battle orders is a big help, specially in hc, again. And, you could focus on find item........... Though quest bugging is better.
Pala is also an obvious choice with the conviction. But again, a bit boring, and you got the sorc as the main damage dealer, don't need hammers.
But really... not much have changed. Play n be good. Ask questions here along the way. We experts are here to help. As always.
D2:R