Stochastic Vengeance

Stochastic Vengeance is a Season 22 Exotic Trait perk on Monte Carlo, an Exotic Kinetic Auto Rifle. It is added by upgrading the Monte Carlo Catalyst.

The perk depends on Markov Chain. Markov Chain raises the weapon's damage with each kill, including melee kills, and melee kills also grant it ammo. Once the weapon reaches five stacks, its alternate weapon action toggles between your melee attack and Monte Carlo's bayonet. Landing a bayonet hit also grants melee energy.