Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
3.5-5% Strength for 3.5s on Hit. Stacks 5 times.
5-8% Strength for every shot fired during continuous fire. Stacks 5 times.
10% Critical Chance for every 0.2-0.35 second while aiming. Stacks 10 times. Discharges all stacks upon firing.
You can swap out whichever pick-axe mark is to your liking just know that this (Branx) is the heaviest output for deleting bosses and heavily armoured units. The other two marks are great, Karsolas for more horde clear less elite damage, yet still deadly with 1-3 three weak spot swings and the Borovian as a great all arounder but not quite excelling in either.
With the charge ability indomitable choose whether you would like the bleed stacks ability to wipe out hordes much faster or the increased dmg on hit one that gives you crazy boosted damage for a few seconds. (I find this one better if your looking to be the armour deleter). Theyre both great for their respective tasks in my opinion.