Refreshed Dodge Efficiency on Weak Spot Hit. {melee_weakspot_damage} Melee Weakspot Damage.
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.
Cleared 40 Havoc with this build.
Basic bubble / flame psyker. Relying on mostly M1 spamming to constant critting to do regain toughness and stagger enemies. With constant uptime of shield for the team.
When applicable long M2 flames into hordes/specials/elites.
The occasional BB to help against annoying ranged or bombers/pox-assholes.
Works on any difficulty. You could switch "Kinetic resonance" for a +5 % crit chance node. Up to you and depending on your playstyle. Either is fine.