Compared to the high-tech Tau, the Necron offer a completely different approach to battle. Sluggish, but forgivingly sturdy, they automatically repair themselves on the run and may spontaneously bounce back up after being killed altogether. Furthermore, slain armies can be resurrected en masse by the Necron Lord. The Necron’s resurrection ability made for last-minute reversals of fortune on the battlefield that often left us awestruck.
We’d frequently leave a squad of weakened Necron for dead, attend to other skirmishes and find later that they were still pounding away at our enemies. Indeed the hearty Necron are like a steam train: slow to get going, but nearly unstoppable once they’ve achieved momentum on the battlefield.