Arbites
10-25% Damage vs Electrocuted enemies.
5-20% Damage Bonus vs Staggered enemies.
3.5-5% Critical Chance for every 10% of magazine spent during continuous fire. Stacks 5 times.
4.25-5% Strength for every Enemy you Stagger. Stacks 5 times.
Reload first then Press F and start blasting. You'll delete groups of @Elites.
If you don't want to focus weakspots you could swap Soulguilt for Withering Fire. Could swap Hold the Line for Withering too.
Just don't be dumb, position yourself for maximum blasting.