Arbites
5-8% toughness on Chained Hit.
10-25% Damage vs Electrocuted enemies.
14-20% Strength for 5s when every pellet in a shot hits the same enemy.
14-20% Damage on Second, Third and Fourth shots in a Salvo.
This build is designed to push maximum DPS out while keeping the defensive options available. You will be constantly using break the line to CC/Stagger everything in sight. You will melt Monstrosities and bosses. Your dog is a death missile because you'll be constantly using Break the Line, and that synergizes with Not Far Behind boosting your speed and damage. Hammer of Judgement is a must take with Maul and Shield to push out justice even faster.
Note: You can take just about any weapon you want with this build, but ideally you want Maul and Shield because the CC from the shield is a life saver, and raising the shield can block snipers and gunners.