just got a unity. do i need another for my follower for it to be useful? not going to replace my soj or rorg with it.
If you are playing solo then yeah you need 2x Unity and the follower item that makes it so they can't die.
It's pretty damn strong honestly. I finally got my second unity this morning and I decided to get rid of every passive/active skill I was using for defensive purposes and now I am finally back to clearing T6 rifts in 8 to 10ish minutes which is the fastest I've been able to go since they nerfed leap quake in the patch. Feels really great to get back to that speed.
I dropped my SoJ for it but being able to get rid of any defensive skills more than made up for the damage loss switching out the rings.