Soridormi

Soridormi (also spelled Saridormi ) is the Prime Mate of Nozdormu the Timeless, second-in-command of his Bronze dragonflight, and leader of the Scale of the Sands.

She currently possesses and protects the fourth and fifth Vials of Eternity.

War of the Ancients
Ten thousand years ago, Soridormi represented Nozdormu at the gathering of dragons in the Chamber of the Aspects for the creation of the Dragon Soul. She contributed her own and her mate's essence to the Soul's spell matrix. Soridormi was betrayed along with the rest of the dragons when Neltharion attempted to use it to gain control of the Flights, but was saved by the intervention of Korialstrasz.

Soridormi again represented her flight, fighting in the final battle of the War of the Ancients over the Well of Eternity. She carried Broxigar into battle against the forces of the Burning Legion and the Highborne. At the end of the battle, she was reunited with Nozdormu.

The Burning Crusade
Soridormi appears as a quest-giver for the Caverns of Time instances, taking the shape of a female high elf for the occasion. The Scale of the Sands serves as Soridormi's personal servants, currently occupied with trying to preserve the timeline around the events of the Battle of Mount Hyjal.

She starts the quest The Vials of Eternity, which players used to need to complete for attunement to enter into the Battle for Mount Hyjal raid instance, but it is now optional.

Well of Eternity
Soridormi's past self makes a brief appearance in the Well of Eternity as she, Ysera, and Alexstrasza attempt (unsuccessfully) to purify the Dragon Soul.

Siege of Orgrimmar
A Vision of Time of some unspecified point in the future reveals Soridormi dying. Her killer's identity is unknown, but Kairozdormu also appears in the vision walking away from her body.

Quests

 * Defender No More
 * Defender's Covenant
 * Defender's Oath
 * Defender's Pledge
 * Defender's Vow
 * Champion No More
 * Champion's Covenant
 * Champion's Oath
 * Champion's Pledge
 * Champion's Vow
 * Restorer No More (Hyjal)
 * Restorer's Covenant
 * Restorer's Oath
 * Restorer's Pledge
 * Restorer's Vow
 * Sage No More
 * Sage's Covenant
 * Sage's Oath
 * Sage's Pledge
 * Sage's Vow
 * The Vials of Eternity

Gossip
The Battle of Mount Hyjal is one of the most well-guarded events of this timeline. Should an intruder alter its outcome, the impact would extend to all subsequent moments in history.
 * Caverns of Time

As the Aspect's prime mate I'm far more in tune with the flow of time than other bronze dragons. I recently sensed a minute ripple in time emanating from the events surrounding the Battle of Mount Hyjal. Someone or something is attempting to change this timeline and they must be stopped.

I am pleased that you've decided to take up our cause. As a reward I ill infuse a ring with the remnants of the Well of Eternity you brought me.

I offer you four different paths in which to unlock their power. Choose wisely,. The sands of time flow easily in one direction and not the other.

Speculation
It is speculated she is likely the mother of Anachronos, the Heir of Nozdormu. Anachronos having been chosen as Nozdormu's heir implies he might be the progeny of the primary consort.