I recently played a game where a Necron Lord with Destroyer body and (I think) a Resurrection Orb and Phylactery charged my Obliterators. I put 4 x S10 wounds on the Lord. I can't remember if he had an Invulnerable save or not, but he took multiple wounds and was ~20" from the nearest other friendly model (Necron). Is it legal for him to make his We'll Be Back roll?
Thanks,
Gorthrax