Magistrix Elosai

Magistrix Elosai was a level 28 blood elf quest giver located in Freewind Post in the contested territory of Thousand Needles. She can be found on the east side of the post (46,50) and was added with patch 2.0.1, "Before the Storm".

Quests
She started the following quest:

She ended the following quest:

See Thousand Needles NPCs and list of blood elves in Azeroth.

The wretched
Elosai was exiled into the Thousand Needles because she had been researching for a cure to the blood elves' magical addiction. In the end though, her cure failed, instead of curing her addiction the tonic accelerates it caused her to become a Wretched. She was understandably upset by the effects of her concoction and despaired that her years of research had been for nothing. She miserably wondered whether the other blood elves were right and that their magical addiction is something they must live with, that cannot be overcome.

She was killed during the Cataclysm, presumably by the invading Grimtotem tribe. Her corpse is in the form of a wretched, confirming that her transformation was one-way.