Psyker
10-16 Bleed Stacks from Special Attacks.
Hitting an enemy gives them 1-4 stacks of 2.5% Brittleness. Debuff lasts for 5 seconds and can have a maximum of 16 stacks.
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.
you can use any melee that is good at dealing with crushers/maulers/monsters, I like the chainaxe.
partial charge the inferno staff and you can keep blaze away up permanently. I rarely need to quell with this build since Battle Meditation quells a lot of peril and Empyric Resolve reduces peril generation by a whopping 40%. Bubble for ranged enemies and brain burst for a bit of long range elimination.