Psyker
Up to 5-20% Strength based on the charge time of your heavy attacks. Stacks 3 times.
12-24% Rending on Enemy Weak Spot Hit for 3.5s. Stacks 5 times.
5-8% Strength for every 10% of magazine spent during continuous fire. Stacks 5 times.
Gain between 3.5-5% and 14-20% Critical Chance based on current level of peril.
Brain Rupture is for mid- to long-range priority targets (don't forget to charge it in preparation for important Specialists like Scab Trapper and Pox Hound). The Maccabian Mk IV Duelling Sword is for armored targets and bosses, plus its great dodges help create distance. Everything else burns.
The Rifthaven Mk II Inferno Force Staff has a couple of quirks that are important to utilize. Firstly and most obviously, you don't overload on Peril if the gauge hits 100% during a right-click volley (don't know what else to call it). It's best to maintain high Peril as much as possible to take advantage of Warp Nexus, Warp Rider, and Penetration of the Soul. I usually use Brain Rupture to get up to high Peril; when you hit 100%, Quell just enough to get another right-click volley off. Try to stay above 80%. Secondly, Blaze Away stacks VERY quickly during your right-click volleys. Not much to take advantage of here, just pointing out that it will be active very often.
Wildfire is almost certainly unnecessary for the Rifthaven Mk II Inferno Force Staff, but I like it for Perilous Combustion and Creeping Flames.
