Atm, a Berserker sword shield + sword shield is serving me well. Its a lot of cleanse, condition reduction, high in health, and can stun to close distance and stop big attacks. It is making the fights last longer, and it takes the pressure off my team mates since I can tank 2-3 players for minutes without dying. That lack of pressure means they can keep attacking without as much fear of dying and that makes them a lot more effective. I get a lot more out of my teammates when I'm the one dealing with a lot of the incoming damage. And as a bonus, you seem to only need to get a couple of bleeds and burns to kill a player. The main drawback of this build is targeting. Since I'm constantly fighting multiple players, I tend to hit the wrong target with all the clutter. Its especially bad with the burst skill that is pretty nice but long. I switch targets fast to keep players from getting momentum and the burst skill tends to activate on my last target instead of the player I'm targeting now. Really makes me feel the limits of tab targeting and action camera combat when skills activate on the wrong players.