User blog comment:Bluebeard2/New Necron background: Thoughts?/@comment-30565967-20111113090004/@comment-10514705-20111113125121

Yes, you do wonder how the Necrons feed their pet C'tan Shards. It is probably still souls of the living...

So... If you really wanted your SOUL REAPERS, you could simply have it that a Shard broke free from it's captivity and turned on it's captors to enslave the once more... *Cue Evil Laughter*