+12.5-20% Critical Chance for 6s on successful Dodge.
+70-100% Rending on Backstab Hit.
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.
+3.5-5% Critical Chance for every 10% of magazine spent during continuous fire. Stacks 5 times.
Build designed to weave between backstabbing and frontline horde clear quickly and repeatedly. Loner taken to conserve points to get two ability cooldown talents - trust me, I wouldn't tag it if I could. When played right, you can draw the aggro of half the horde on your team, gain lots of cooldown, and then pop invis again to snipe an elite.
Ruthless Backstab on knife makes Crusher and Mauler kills reliable when using invis. Headshots aren't required to kill those two. Riposte is good when out of stealth and backstabbing the horde, odds are you'll be dodging anyways so it'll help with cooldown. With a high base crit via knife base + Scourge + Right Piety, get lots of cooldown.
You can choose to replace the Bolter with the ADS revolver if you wish, but that kinda intrudes on the role of the throwing knives. Throw a knife whenever you whip out bolter to save on ammunition, shoot the boss or problem targets in the back if you can to take advantage of Ambuscade. Don't pop invis just to reload, get holed up next to your team and do so when you have an opportunity. In general you'll be using this rarely as a panic weapon.
Try to stay near your team even with Loner tagged. 2 coherency toughness regen is miniscule so you shouldn't be running too far off ahead, you won't be able to take advantage of their auras otherwise. At the very least, it's a nice little boost while you go way away from your team.
