Auric Maelstrom - Heal Aura Spam via Crit
Build for Darktide

build 

primarily focused on using melee to cleave hordes/specials while critting constantly to rapidly reduce the cooldown of chorus using invocation of death while staying alive with until death.

invocation of death

reduces the cooldown of your ability by 1.5s on melee crit per target. this means using high cleave weapon like  eviscerator or ix heavy sword paired with crit talents can get your ability completely refunded in seconds while cleaving horde. dagger also works with this build; it has fast attacks and bonus crit allowing it to trigger cd reduction very often, especially with lacerate blessing to ramp scourge quickly.

chorus 

is a very strong ability- it gives immunity, replenishes and gives bonus max toughness, staggers anything nearby including bosses (they can be pushed off ledges for *instant* kills), and gives solid damage bonus afterwords. use it whenever you see toughness bars low or a group of enemies that need staggering, then go land melee crits to get it back off cooldown.

until death 

makes you a zombie for 5 seconds when you hit 0 health. holy revenant allows you to heal for a portion of the damage you deal during until death when it ends (up to 25% max HP). restoring faith heals for 25% of damage taken, even damage taken during until death. this allows you to heal a considerable amount when you would otherwise be knocked down once every two minutes.

eviscerator 

has good base cleave, with cleave and crit blessings it does a great job at reducing chorus cd. can use special attack to deal with armor. ok boss damage with shred light spam applying scourge bleed. dagger with lacerate and ix heavy are good alternatives.

revolver 

is great at sniping ranged specials and killing armor with rending. ok boss damage.

immolation grenade

good for throwing at mixed hordes to clear out the trash and soften the armored targets.

your job 

is to use chorus in tough fights then melee against hordes to refresh its CD very quickly. use revolver to snipe specials or punch holes in armor. if you have chorus up and a group of specials/elites, a mixed horde, or a boss approaches USE IT. it is one of the best abilities in the game for minimizing health loss during hordes and for turning the tide of a difficult fight and this build makes it come back off cooldown quickly. if your allies are not following up on your chorus stuns and eliminating the targets, consider throwing an immolation grenade before you use chorus so that the fire can dps everything while you apply stun.