i haven't actually read a grey knight codex but from what i read it sounds like they are all psychics? would this not make the sisters of battle uber good verse them? like they can take so much anti witch gear that i was just wondering
Though that faith can turn the bolter shells into AP3 or give the sisters more attacks or greater strength in cc or turn their flamers into marine-eating monsters...
Sisters can negate any psychic power that is 'casted' on them or with they are in the AOE of the "spell" on a 4 or 5 plus. Of course this doesn't work against Daemons, because those powers aren't psychic......
we even decided this works for there vehicles since they are driven by sorotas.