I still use Mirinae and can do easy GR 76 (Did not push it yet) with 685 paragons (in season) and can do easy gr 85 (1300 paragons out of season).
I use the blood nova with Iron rose build and it gives me about 5 gr higher than the land of the dead one. The rift guardian takes just a little bit longer if you do not time it well with a few corpses around. One thing that I noticed that makes quite a big difference in toughness is augmenting my ancients right away. It is like a paragon boost without the grind.
P.S.: Rathma carpal tunel build is not for me at all. If I wanted to play a pet build, I would go back to my WD. Tragoul is powerful but no fun to me either. It i why I am sticking with Inarius right now just for the fun of it.