Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
Hitting an enemy gives them 1-4 stacks of 2.5% Brittleness. Debuff lasts for 5 seconds and can have a maximum of 16 stacks.
Primary Attack ignores 30-60% Stagger Resistance on Burning Enemies, as well as dealing 30-45% Impact.
24-36% Reload Speed if empty.