Sintharia, also known as Sinestra or Lady Sinestra, was the former prime consort of Deathwing and mother of Nefarian and Onyxia. She was, until recently, believed dead. Her experiments led to the creation of a flight of twilight dragons which she planned to use to rule Azeroth. Her plans never came to fruitition, and her death finally came at the hands of her own creation, the twilight dragon Dargonax.
Sintharia was once the prime consort of Neltharion, who later came to be known as Deathwing. She gave birth to some of Deathwing's most despicable children including, Nefarian, the eldest child, and his sister, Onyxia. After her mate's madness overtook him and the rest of the black dragonflight, the newly disfigured Deathwing attempted to mate with his consorts, causing Sintharia a great deal of pain and leaving behind scars and burn marks. Sintharia was the only mate known to have survived.
Approximately five hundred years prior to the opening of the Dark Portal, Sintharia attempted to bring down the Kirin Tor with a curse that left the wizards unable to use their magic. Her scheme was foiled in part by Korialstrasz, consort to Alexstrasza, and when Sintharia was defeated, most believed her to be dead. She survived, however, and forsook her mate and children, taking on the guise of Lady Sinestra, a name she came to use as a dragon as well. ( )
After the disappearance of Deathwing and the deaths of Nefarian and Onyxia, Sinestra reemerged hoping to continue her family's plan of creating a superior dragonflight to rule over Azeroth. Gathering up what shards of the Demon Soul she could find and Balacgos's Bane, Sinestra used these relics, along with the eggs of various flights she had collected over the centuries, and the captured nether dragon Zzeraku, to create the twilight dragonflight, one of the first of which was Dargonax whom she considered her child. Her old nemesis Korialstrasz, along with others such as Zzeraku, the blue dragon Kalecgos, the wizard Rhonin, Vereesa Windrunner, and the draenei priestess Iridi, put a stop to her operation. When Dargonax's already unstable powers finally destabilized, he burned away, taking his "mother" with him. Korialstrasz believed that Sintharia's last, angered glance may have been at him. ( )
In World of Warcraft
This section concerns content exclusive to The Burning Crusade.
Sintharia's visit to Outland can be seen in World of Warcraft: The Burning Crusade. Lady Sinestra is a level 73 npc located at the Dragonmaw Base Camp in the contested territory of Shadowmoon Valley. She uses her blood elven guise for her meeting with Overlord Mor'ghor, presenting herself as an emissary of the black dragonflight.
Meeting with Overlord Mor'ghor
- Lady Sinestra says: Overlord Mor'ghor, I presume... A pleasure to finally make your acquaintance. I am Lady Sinestra.
- Overlord Mor'ghor says: I will not drag this out any further than it needs, Lady Sinestra. You have bent my ear, now tell me what it is that you want from the Dragonmaw.
- Lady Sinestra says: You have no doubt heard about Nefarian's failures on Azeroth... While he has fallen, the experiment continues. My master... He continues the work that his progeny began.
- Overlord Mor'ghor says: The... The master? He lives?
- Lady Sinestra nods.
- Lady Sinestra says: You were once a chief lieutenant, Mor'ghor. Your work in Grim Batol is not easily forgotten. Now... We need the eggs that you recovered. The Netherwing eggs. They are, after all, a product of the master. We will pay whatever price that you ask.
- Overlord Mor'ghor stammers.
- Overlord Mor'ghor says: Ye... Yes, yes... Of course. We need only the crystals and ore from this place. There is... We will need mounts.
- Lady Sinestra says: The master will be most pleased with this news. The Black Dragonflight will provide you all that you ask. You will be allowed to ride upon the backs of our drakes as needed. I thank you for your graciousness, Mor'ghor. I must now take my leave.
This section concerns content exclusive to Cataclysm.
Photos brought onto MMO-Champion show that she is ether Alive still or will be in undeath like her Children, but she may be a boss in the Bastion of Twilight