For Craftworld Eldar? Death Spinners and Shuriken Cannons. For Dark Eldar? Dark Lances, Splinter Cannons, and Venom Blades.
HUSK BLADES! *draws a sword that looks nasty and smells terrible* Now give me a soultrap and I will soon be whipping out S10 attacks ignoring armour and causing instant death! Aww man... I wish I was an archon.
Dude, I really did want to say huskblade, but I doubt something like that will be in game haha. A power weapon with instant death? I don't see it happening! (As much as I would love that) A Djinn blade might be interesting, but I really don't want to be hit with my own sword. Also, you have to remember, a soul-trap won't work unless you kill independent characters or monstrous creatures. So you have to be killing Librarians, Farseers, Meks, Sorcerers, and Lictors (All powerful) to get that Str increase! P.S. As of 6th ed, power weapons are only AP 3! >.<
Huskblade is still AP2, was somewhere at the FAQ, just like the klaives are AP2. With instant death, as long as you have a possibility of wounding it you just need to keep trying and you will bring down anything! Buh-bye big nids et al. Is a problem with eternal warriors though... Djinn blades would indeed be interesting. I recently figured that if you have a soultrap you can instakill yourself with it. S6 ftw
cant decide on being a Long-Fang (a Space Wolf devestator) or an assault marine, if i choose assault marine..... power claws.... nuff said