Haunted

Haunted
{
Hmm, you seem to have a guest inside your head.
Type:	Curse
Boss:	Ursula

Haunted, as a Curse, is something of an oddity. On one hand it spawns the same clones you fought in the initial boss fight with Ursula once every so often to hamper you during gameplay at any given location from the very recesses of your mind that she resides within, but on the other hand, she may appear as a vendor, or even temporary pet to assist you if you possess access to the skill of Necromancy or it's use in your skill bar (Not sure which) which may be complimentary to builds such as Spider/Necromancy or Necromancy/Battle Chemistry, or Necromancy/Animal Handling.

• Additionally, this curse can also spawn an Ice Magic variant of Ursula who proclaims "Let's play freeze! (playername)!" It is unknown if using the same attack she opens with on her will do anything if allegedly used.
• Both of Ursula's hostile clones are lootable and can be used to get the occasional useful drop, such as an Ancient Bronze Coin or can be used as a quick way of setting up a Shambling Corpse/Zombie if in need of fresh corpses to do the summons.

It should also be noted that it is possible to stable Ursula in her pet spawn, but not remove her from the stable as a part of a glitch. Feel free to do so as a trophy of your success of getting her to spawn as a pet, for this and her vendor state are fairly rare.

Cures

• Defeat Ursula

Sources

• Rage attack or defeat by Ursula.