Do Necro Skeletons still kinda suck after Normal?

So I have always wanted to do a pet Necro but in the past (last time I tried was like 2-3 years ago) they did fine in Normal and Elite, but every said they were crap in Ultimate.

I am not aiming for them to like clear all the hard content or anything. I am mostly curious if you can do a pet focused Necro + SOMETHING now, with Skeletons, and have it at least clear all of the campaign in Ultimate without too much of a problem.

And also a suggestion on what to pair WITH said pet necro. Occultist maybe?