I hate NPC Killcams. On master, you'll get insta-killcamed by any two-handed NPC because of the bugged killcam formula.

So, does it work with the bloodskal blade, too?

If you side with Hadvar, you can pick up Iron and Steel Ingots at Alvor's forge without stealing them. You can also get a Ebony Weapon early on by heading to Solitude and accepting the bards college quest involving Olaf One-Eye, he's guaranteed to carry one and you don't even have to kill him on your own, an essential bard-ghost will do it for you.

With Dawnguard, Necromancy is way better than Atromancy. The AI of the Soul Cain summons is just far less stupid than the atronachs, and Dead Thrall are way better than Atronach Thralls later on.

The Wabbajack. Although luck-based,it has several insta-kill effects, which makes it a good weapon for emergencies. It's also useful against Dragons early on.