Daedra Prince: Vaernima
Summoning Date: 10th of Sun's Height
Description: Using the Skull of Corruption on an opponent creates a duplicate of the victim. However, this duplicate will attack the original, not the wielder of the Skull. There is a story about the Thieves Guild Master and the skull that is probably fiction, but highly amusing. The Master used the skull on her enemy, creating a clone of him to fight. After defeating the original, the clever duplicate snatched the Skull from the Master and used it on her. Although the cloned enemy could not directly attack the Master, it could use the Skull to create a duplicate Master. The two clones jointly ruled the Thieves Guild for years.
Comments: Like Wabbajack, this can be a fun (sometimes funny) artifact to use. It seems that if the duplicate is killed, its body does not disappear when you leave the area (congratulations! You've just made a permanent addition to the scenery of the Bay). The treasure seems to remain for a day or two, but it will disappear eventually. Might be an interesting way to make a handy storage area if it's someplace you frequent.