Gandalf's 'Blazing Greatsword' DD Shriek
 Psyker Build - Warhammer 40k: Darktide 

A build that was initially created due to Warp Slice being a Blessing on the Greatsword, but after learning that it doesn't work/it doesn't make the wave cause Soulblaze...I just refined the build a bit and left it as a fun novelty for when bordem strikes. Since the build uses BB I put the fast fire revolver on it for quick armor clear and pretty good Monstrosity damage, other than that you run around swinging away into the wave, setting things on fire occasionally and spamming uncharged Greatsword shots into it in order to then Shriek out fire whenever it's on cooldown.

It works well in that regard, but any build can clear a wave with Shriek. But this one does it while trying to keep the fire up with Blazing Spirit, so that's nice and novel to a degree. Similar to the Voidblast build, but with less warp crit buffs since you'll mostly just be slashing away. You still take DD though just for the sake of added weakspot damage and move speed that you sourly need.

That's the build really, slash the wave, send out slashes as much as you need to for peril generation and fire spreading, and dump your revolver mag when you need/want to, while BB'ing anything super long range. One can hide behind their Deflector when getting shot at too with Kinetic Deflection helping that work extra well, and can be a source of Peril generation in a pinch on top of everything.