5-8% toughness on Chained Hit.
5-8% Strength for 4.5s on Kill. Stacks 5 times.
20-35% Toughness on Elite Kill.
Target receives 1-4 Stacks of 2.5% Brittleness on direct projectile hit. Debuff lasts for 5 seconds and can have a maximum of 16 stacks.
Mk3 Cleaver is used for crowd control. Cut through chaff with light attacks. Rock is used to take out elites and mutants. Swap to your Grenade Gauntlet to deal with heavier enemies wherever necessary. It's fairly precise and hits like a freight train. Use your ult to blitz into crowds or clear space and make breathing room for your teammates, give yourself toughness, and massively increase your attack speed and damage with melee for a short period.
Feel No Pain will give you toughness when you take enough damage. Pushing enemies will increase the number of stacks you have for Feel No Pain, increasing toughness regen. When Feel No Pain's stacks are depleted, you will knock back enemies and replenish toughness, which also affects dogs pinning you, allowing you to get yourself back up in a cluch moment.