Effects
Reduces pain shock chance (1% per level → -50% at Elite Level)
Reduces tremor oscillation (1.2% per level → -60% at Elite Level)
Elite level: Berserk mode access
How to rise
0.033 points/sec for being low on health points
0.33 points for each "Pain" debuff
Completing the quest Psycho Sniper
Completing the quest The Survivalist Path - Cold Blooded
Completing the quest The Survivalist Path - Wounded Beast
Completing the quest Swift One
Completing the quest Profitable Venture
Completing the quest Get a Foothold