Psyker
Hitting at least 3 enemies with an attack, restores 12-15% toughness.
2.5-4% Bonus Critical Chance on Chained Hit. Stacks 5 times.
Gain between 3.5-5% and 14-20% Critical Chance based on current level of peril.
-8.5--5.5% Charge Time on Chained Secondary Attack. Stacks 3 times.
Waffle's Voidblast BuildVoidblast secondary explosions should be tossed out freely and frequently. Aim for 50-80% charge most of the time, it's sufficient and better you get another blast cooking than hold one for ages, 100% if you're really wanting One Guy Dead. Spam. The.Voidblast. Though careful you aren't voidblasting enemies AWAY from your zealot and Ogryn friends, so you're not starving them of the toughness they need.Primary Fire spam is good on the Voidblast and should be freely spammed down narrow corridors and sight lines until you get close enough to start working on them with the Voidblast booms.Smite for those Oh shit moments if your voidblast crowd control isn't working too well (it takes practice!). But primarily chose this cos the other options are worse. Also builds up peril nice and quick for a Venting Shriek Venting Shriek should be used at 85% peril or more, it goes through walls, travels 30m which is HUGE. At 85%+ almost all lesser enemies will be dead after a few ticks of flame. Leaving the field clear for you to focus the pesky elites.
Psykinetic's Aura Seer's Presence to actively reduce cooldown of your Venting Shriek Warp Siphon keystone has you build stacks which reduce your cooldown further, meaning more frequent Venting.