Before I start, I have all books needed for this except the necrons book.
With everyone kinda freaking out about army wide 4+
RP I began looking into my codex on how to combat it in the local meta.
This is not an answer for all Necrons, but I feel its a good way to combat the warrior blob spam ive seen some local guys building up for.
Helfrost. Pretty much an ability that was overlooked at the time of codex drop as situational. I think this is its time to shine!
Helfrost: A model that suffers an unsaved wound must immediately take a strength check per wound. A fail results in the model being removed from play. (paraphrased)
This triggers just like
FNP and
RP (only at an unsaved wound) and does not reduce a model to 0 wounds but removes them from game (similar to
JOTWW from 5th)
Its not a guaranteed removal of models but its more dice to roll, and we know that kills models more than anything.
The reason I bring it here, is I was argued with that
rp was a save like
FNP and that necrons would be basically immune to this.
so,
YMDC let me know what you think? (first post super stoked to be here
btw 
)