Board Thread:Warhammer 40k General Discussion/@comment-46.162.84.254-20130704080553/@comment-4851119-20140712111707

71.218.157.149 wrote: ...Don't forget about the Old Ones (which are possibly responsible for the Tyranids themsleves)... the War in Heaven Era Necrons could have equally challenged the Tyranids. 1. That's been discounted. There's no way the Old Ones are old enough for that.

2. Proof that War in Heaven Necrons have anywhere near the numbers and firewpoer to take on the Nids? We know they're bloody tough (almost Culture level if they can challenge the Old Ones) but they'd likely be overwhelmed eventually.