My wife has just bought me a present - a brand new (and ancient and grizzled) cairn wraith! My vampire counts army is growing by leaps and bounds. As soon as my wife and I have our budget meeting to discuss the distribution of some extra moneys and I can bid on some huge lots of skeletons and ghouls, I'll be ready to play.

Well, that and get my lizardmen painted up. Let's not get ahead of ourselves.

The trouble is, looking at the cairn wraith's stats, I'm not quite sure how to use it. There are no Ethereal infantry units it can join, and it can't join non-Ethereal units. It's small base size and relative fragility (Unstable rule) makes it pretty poor as a charge redirector, since you're likely to lose it if it's charged (2 wounds + 3 attacks + loses one wound automatically for every point by which it looses combat = uphill battle to win combats and avoid dying of instability). Do you rely on its mobility and resistance to shooting to run it up the flanks and try to take out squishy targets that you really want dead, like warmachines?

I'm used to lizardmen, where - except for a carnovet/carnoblood - all my characters seem designed to hang out with some kind of unit. Any advice would be welcome.