Advice against thousand sons demon soup

I’m looking for some advice on how to deal with 1k sons with Arihman, 3DPs PB screen an so forth. Especially the death hex scares me alot since it will make my grotesques really easy to take down.
I,m currently running flayed skull with kabals+venoms; prophet of flesh with talos, wracks screen and grotesques; black heart ravager spearhead btw but don’t mind switching stuff around if you have any great ideas. Would like the list to remain rather TAC sill though.

If you're not using it - Helm of Spite would be a must for me vs 1k sons. You only get the one deny attempt, but triggering perils is golden. You aren't after denying a key power as much as taking out the Psyker with mortal wounds.