Highest crit build for Berserker?

1 hour ago, Moritsuna said:

Kinda random - but for this build would you not run devil of caroc breast plate (mechanical mind) or should you?

If you have skeletons in the party (from a fellow Chanter) you might want to stay confused in order to "accidentially" kill skeletons with your friendly fire Carnage and Riven Gore. This triggers Bloodlust, Blood Thirst, Cleave and heal on kill (pet) and takes the Brute to a whole other level. But you cannot let party members come near you then if they have low health. They have to stay out of the Riven Gore range (same as Carnage range) or else they might get destroyed by it. That's not getting knocked down - they actually vanish and are removed from the party instantly.  

If you don't want to do that then Devil of Caroc is indeed a great pick (to get rid of the confusion - but also because it's a great armor with great enchantments in general). 

1 hour ago, Moritsuna said:

Also should you run a tank or just yourself?

I would always use a main tank (not this guy, usually a fighter/something with Defener Stance and a large shield) and let him unstealth and getting attacked first - while the others prepare from stealth (casting buffs etc.). Only after most enemies settled on the tank I will send in the others (like this guy) with offensive stuff.