|Skull of Corruption|
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20 points damage, increases to 50 if powered with dreams collected from sleeping people.
The staff can be obtained in the quest Waking Nightmare, which begins in Dawnstar. Vaermina orders the Dragonborn to kill the priest Erandur, while Erandur is in the process of banishing the staff. Allowing Erandur to banish the skull does not make obtaining the Oblivion Walker achievement impossible as it is possible to get one more Daedric Artifact by taking advantage of a bug. There are seventeen possible artifacts to collect (but the Skeleton Key doesn't count towards the Oblivion Walker achievement.)
Once the quest line is complete and the staff has been sold, it is possible to retrieve it as a dropped item from guards in Whiterun. This bug may only occur inside the home of the Dragonborn.
In order to collect dreams to power the staff, cast it on a sleeping person. This is not counted as an aggressive action, thus targets do not become hostile. Five dreams are received from each person.
The College of Winterhold is a good place to harvest dreams due to the large number of sleeping members and the ease of access. The same is true for Jorrvaskr. Sleeping draugr are also a good source of dreams, as most burials have a number of draugr lining the walls.
Another effective location for harvesting dreams are soldier barracks in a hold capital, as there are often guards (usually three to four) sleeping inside. When dreams are collected or used in an attack, the number of dreams in the staff will be shown.
Soul gems are still needed to charge the weapon.
The Skull of Corruption can damage multiple targets at once. This is useful when faced with multiple opponents. However, it can also injure followers that are nearby, which might not be very good if you have a follower with low health if you are in battle when the Skull of Corruption is used.
- This weapon (like some other daedric artifacts) has an unstable physical model which causes it to disappear, delete, move, and fall, when placed on weapon plaques, weapon racks, and in the world in general. Exercise caution when placing it in a home. However, it is not affected when placed in a storage container or while in the player's inventory.
- After Erandur is killed in Waking Nightmare, get a bounty in Dawnstar, go to jail, and pick the door's lock. The guards may draw out a duplicate of the Skull while searching for the perpetrator.
- Initiating combat on a character that dreams have been stolen from in the past can sometimes cause the staff to collect dreams. Even just using Unrelenting Force on a guard will work.
- Autosaving after breaking the barrier will sometimes cause the game to freeze.