Well, I'm criting for 4-5m, but since I have Harringtons Waistguard, I usually crit for 10m which prolly is what that streamer was using (debo maybe?). With a few stacks of Soul Harvest, Gruesome Feast and Big Bad Voodoo, I'm doing 15m+ on elites. It was visibly faster with Carnevil. Dog was hitting less, but was able to hit more since there was less clutter around the boss, so overall was more party dps.

Once they fix Fetishes so the passive Fetishes don't overwrite the Fetishes from Fetish Army, I'll definitively try this full scale since u can boost Fetish Army damage with items. Imagine 80+ Fetishes hitting darts and just your dogs and Garg tanking. U can prolly faceroll T6 that way, tho FPS will be an issue. I'm dropping HARD to 20fps when usually I'm at 50-60 stable.