6 Attacks on the Charge matey
. 4 on the defence, thank god, but that's dirty enough. T7 and 5 wounds combined with the Anti-poison rule (which I can imagine is a sneak peak at what the standard Necrons will have), anda 3+ Armour Save, even Plasma will struggle to cause damage with that.
It does have Night Vision, but that's not that useful considering it has two Gauss Flayers only, and you give up your Run (of which you are a monstrous creature in any case).
Still all things considered, it just goes to show how broken the Wraithlord is with its S and T of 8.