Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
Recover 15-24% toughness when hitting an enemy with a heavy attack, based on charge time.
7-10% Strength for every 4 Single Target Hits. Lasts 2s and Stacks 5 times.
5-8% Strength for every 10% of magazine spent during continuous fire. Stacks 5 times.
Solos all full health bosses in 10s or less while being damage immune at the cost of 13% max ammo per kill. Pickaxe clears all melee threats while also keeping full health. Build is honestly too good with no downsides beyond ammo use.