OVERPOWERED: ZAPP FOREVER
 Psyker Build - Warhammer 40k: Darktide 

Zapp forever Build. Weapon should be something you like and kill a lot or kill one thing very well. You choose. 

This build is for when you want to use that sweet sweet SMITE ability and never ever ever EVER run out. The key to this is literally having both Smite (with all the skills associated with it) and Empowered Psionics. With Empowered Psionics you want all the skills, and choose which of the two skills you know you can achieve (either 12.5% or on elites). Once this is built you will want to wait to use Smite until you have a level of Empowered Psionics ready in the bottom of the screen. The more Empowered Psionics the better. 

As long as you have a level of Empowered Psionics (purple head with a number on it) you can then charge your smite (RMB) and when it is full let it go (LMB). It will not stop smiting until you either: 

1. Let go of the button (decreases a Empowered Psionics level until you have zero)
2. Get Hit (because you to let go of the button)
3. Run (if you hit the button to run, you will stop smiting)

You can only do this Zapp forever as long as you have levels of Empowered Psionic.

Try out the tree I have above. The only 2 requirements are: 

1. Smite and all its perks
2. Empowered Psionics and all the skills that will allow you keep getting it. 

I choose the shield for helping my team and other coherency perks, but the rest is up to you.