[Killermoose]

I've got the new Dire Avenger set, and I am trying to work out what weapon combination to go for for my Exarch. I am taking the defend power (I want this squad to tag-team with my Bladestorm sqaud, this one engaging enemies in CC after they have been whittled down by the Bladestorm sqaud). I was origionally going to take Power Weapon and Shimmershield, but really, how good is a 5+ invunerable in combat? Not many armies have enough power weapons to warrant this, and I am wondering if it would be better to take the diresword and shruiken pistol (+1 attack for 2 CC weapons), which against low leadership multi-wound models is very effective (this one even works against Tryranids, it's not described as instant death). I would like your advice on A. How useful a 5+ Invunerable is in combat and B. Is it better to take a Diresword than a Power Weapon and Shimmershield, (the diresword is 5 less points). Thanks in advance.