+5-8% Strength for 4.5s on Kill. Stacks 5 times.
Up to +5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
+30-60% Rending on Critical Hit.
+10% Critical Chance for every 0.3-0.45 second while aiming. Stacks 10 times. Discharges all stacks upon firing.