http://elderscrollsonline.com/en/news/post/2013/09/12/developer-question-of-the-week-38

my own artifact huh, well that's interesting.......

Sword of the Necromancer: resurects any humanoid enemy after it has been killed.

limitations to conjuring or resurrecting creatures still apply.

Tingle-Bow Mania. Forsaken bow with Shock and Frenzy.

The Orbweaver, a Conjuration staff said to be constructed from the spun silk of Mephala herself. When cast it conjurs a web around the bodies of all the caster's foes within 20 meters and they slowly tighten their grip until the victim(s) are dead. The only way to free them would be to set them on fire.

(Hrm, would that be Conjuration or Alteration?)