Cap'n Ashley's Pirate Psyker
 Psyker Build - Warhammer 40k: Darktide 

Captain Ashley's Pirate Psyker Build! (will edit this text eventually im just busy grinding plasteel)

dueling sword lights are good for horde, and you can essentially infi-dodge with agile

dueling sword heavies are good for everything (high dmg with thrust)

voidstrike is good for long range snipes, on snipers or gunners from afar, but it also excels at horde clear since its charged projectiles go through enemies (and with surge/warp nexus you are shooting a lot of high dmg piercing projectiles)

smite blitz is good for pushing poxbursters back, shoving disablers (trappers/hounds/etc), but the chaining electricity also makes enemies take more damage. and with the modifier for it: charged strike, for example if youre about to get crushed by a crusher, one charged heavy to the head wont kill it, but itll get stunned cause of the lightning! 

prescience aura for crit chance

scriers gaze my beloved. you can use this for movement speed, you can use this to SHRED bosses, you can also use this as an emergency "oh shit" button to quell your peril if you are about to overload. (itll bring you to about 50% instead of 0% like shriek does, and then it starts to raise until it hits 100% again, but if you time it right you can avoid overloading and gain some dmg/movement speed)

disrupt destiny helps you to see random enemies through walls, and when you kill them you get a strong finesse buff that lasts for a couple seconds. if you keep killing marked targets you gain more finesse dmg and movement speed, and when paired with scriers gaze you can do a shit ton of damage and also are probably faster than the knife zealots you see 

this has been my favourite build since this game came out essentially. i have reworked it over the years everytime they nerf or change the talent trees, but its even better now after the last tree rework! 
(oh and for the curios, if you dont like +1 wound, +health would be a good choice, i sometimes switch between wound/health curio depending if its maelstrom or havoc or whatnot. its preference tbh)

and the cover screenshot is my psyker and my girlfriend's hive scum <3