Wow, gratz on this setup. It’s very close to mine. Here are my changes:
You dont need the corpse generation, altought on masses you would pump up your fortifiy with it, which is however not needed on mass pulls.
Decrepify is better later on (75+) as Iron Maiden is awesome for sustain and gives some extra damage but Decrepify simply adds so much stat value and the cd procs are the key. Allowing perma cc with Tendril on masses.
Don’t miss the attack speed.
Corpse generation on Blood Mist for guaranteed Tendril pull on boss.
Thorns points are whatever, could also go to Hemorrhage or Tendrils or Bone Spirit with the unqie body armor (very recommended)
Drop Golem for extra life, better sacrifice bonus from aspect, more dr, simply better choices with bone storm or reap when it comes to dr. Altough he is pretty awesome early on, I often miss my golem :`)
(pick atleast one blood orb heal for him, if you want to keep him so far)
All in all, pretty decent. Have fun. I did mid 40s maps with lvl 77… so dunno what the previous one really means. t25 could be done blind without hands, t35+ were easy chilly, open world was laughable. But yeah hard crash got me this time, lol.
Anyway. You are a tanky god, an immortal god bond to his own legs to carry him from foe to foe altough having the ability to destroy everything around him with the blink of this eye, sucking the whole life force of every enemy around him and further away, using it to unleash a destructefull blood infused explosion around him, annihilating every foolish oponent staying to close to this manifest epos of of life and blood magic.
And here comes some stat info:
overpower damage
willpower
blood skills
all passives in skill tree
definitly works on overpower. Crit and Vulnerability definitly not.
close/range, on high health, vs low heath, physical dmg I do believe in, but unsure so far. I just concentrate on the above + attack speed, crit chance and lucky hit and pick those atleast in the paragon tree. When i get to high tiers back I will do some more testing
Go crit chance for tendril aspect very good, aswell as the attack speed and sacrifice one.
GO EVERYWHERE HP, best stat by far. Use a shield and a wand or scythe.
Hope it helps you on your epic journey and don’t let the strange people here talk you down, just play whatever seems fun to you 
and expirment with it. There is so much to play around and things to discover. Everyone is still trying to figure out how most of the things work, exspecially necromancers^^