Board Thread:Warhammer 40k General Discussion/@comment-24081662-20150320002747/@comment-25507520-20150424030605

On the contrary, it really doesnt cancel out psychic powers, it simply smothers the thoughts of psykers that try to use their powers, either driving them insane, making it MUCH harder to use their abilities, or in the case of demons, simply making them fade in and out of reality, or completly smothering them.

If you want you could nerf this, or leave it like it is and just make it harder for psykers to cast their abilities. Heck, its your RP, take it out if you want, but it wouldnt make much sense.