This build requires the Bloody Harvest anointed gear. You don't need too much survivability since your pet taunts all enemies. Make sure you have atleast one point in "He Bites!" to proc "Frenzy" (You should not have to if you have a "Red Fang" class mod with atleast one point)
Use Face-puncher to generate Terror then swap to main gun.
Watch it in Action: Click Here