Heh that'll be funny. Back in the Necron's time Chaos wasn't a threat. Most of the Chaos gods (somehow, seriously this doesn't make sense.) hadn't come into existence yet and the Old Ones hadn't unleashed/attracted/whatever they did to the Enslavers which are a very very dangerous warp predator. Which also somehow unstabilized the warp more making it more dangerous in general.


Not that they haven't learned anything since waking up but they'd be beat by almost every faction except Tau.