Onyxia

Biodata

Feature	Details
Name	Onyxia
Alias(es)	Black Dragon Princess; “Oni”; Selina Morningstar; Countess Katrana Prestor
Species/Race	Black Dragon
Gender	Female
Affiliation	Theramore; Blackwing Fertilizers; Deren’s household
Occupation/Role	Black Dragon Princess; Deren’s partner and protector; co-founder of the fertilizer operation
Status	Alive
First Appearance	1

Background / History

Onyxia is the daughter of Deathwing and Sinestra, and Nefarian’s younger sister. Initially aligned with the Black Dragon family’s destructive legacy, she receives an anonymous letter exposing knowledge of her identity and travels to King’s Valley to confront its sender, Deren. His knowledge of the Old Gods, Deathwing, and her foretold death—her head displayed on Stormwind’s gates—persuades her to form a mutual-aid pact with him instead of killing him 1 2 737.

She and Deren adopt the identities of Selina Morningstar, a High Elf mage and bodyguard, and Deren Losen, a fallen noble, in Treasure Bay. They establish a hidden operation, later relocating it to the Swamp of Sorrows and building a fertilizer business staffed by dragonkin and supplied through goblin merchants 3 6 13 20.

The business is a cover for preparations against Deathwing. Onyxia reinforces her lair for explosive experiments, tests rockets designed to wound her father, and eventually joins Deren and Chromie in ambushing him. She launches repeated volleys of armor-piercing rockets into the immobilized Deathwing, critically injuring him; the injury becomes a major divergence from the original timeline 20 23 25 780.

Afterward, Onyxia settles in Theramore with Deren. Although her past identity as Katrana Prestor and former actions in Stormwind create suspicion, she increasingly acts as a protector of Deren’s household, Theramore’s allies, and dragons endangered by the Dragonmaw Clan 175 177 698.

During the expedition into Grim Batol, Onyxia discovers evidence that her mother Sinestra may have been enslaved. She leads the search, defeats Dragonmaw forces and Black Dragon opposition, and confronts the captors holding Sinestra through a Demon Soul fragment. Sinestra is ultimately freed and later joins Onyxia in Theramore 650 653 659 662 667.

Appearance

Onyxia can shift between a massive black dragon and a humanoid High Elf-like form.

• In dragon form, she has pitch-black scales, enormous wings, lava-dark crimson highlights, and golden vertical pupils 13.
• Her eyes are repeatedly compared to burning gold coins 13.
• Her dragonfire is often described as black flame or Shadowflame 2 61.
• As Selina Morningstar, she presents as a silver-white-haired High Elf with pointed ears, deep-blue robes, a Dalaran insignia, and a staff 3.
• In Theramore, she commonly wears black robes or dresses; her draconic eyes, claws, tail, and scales can emerge when angered 13 90 175.

Personality

Onyxia begins as proud, ruthless, easily provoked, and deeply conscious of her status as Deathwing’s daughter. She responds to threats with intimidation, Dragon Awe, claws, or fire, and is especially offended by insults to Black Dragon honor 1 2 650.

Her partnership with Deren exposes a more vulnerable side. She fears being regarded as an uncivilized beast, worries that her strength could injure him, and gradually accepts his reassurance and guidance 13 30. She is possessive and openly jealous of women who approach Deren, particularly Jaina, Sylvanas, Anveena, Aegwynn, and visiting dragons 35 101 154 448 449.

Despite her hostility and pride, she becomes fiercely protective. She protects Deren from assassins without waking him, rescues Chromie and Kalecgos from Dragonmaw captivity, and takes responsibility for Black Dragons and other dragons enslaved by orcs 111 116 650 652. She also develops a warmer, domestic side in Theramore, including caring for her mother after Sinestra’s rescue 686 737.

Abilities & Skills

Dragon Transformation

Onyxia freely assumes a humanoid guise or her true Black Dragon form.

• Her dragon form grants flight, immense physical strength, claws, wings, and draconic durability 13 25.
• She can rapidly transform in response to threats, including breaking through buildings when startled by an apparent attack 61.
• Her humanoid form allows her to operate in mortal society under false identities 3 13.

Dragonfire and Black Flame

Onyxia uses devastating fire attacks, including black flame and large-scale Dragon Breath.

• Incinerated the Dragonmaw cave rescue site, killing the orcs within; Zuluhed survived only by activating a teleportation rune 116.
• Incapacitated enslaved Red Dragons while eliminating their captors in Grim Batol 652.
• Uses controlled black flame for practical tasks, including heating water for tea 9.
• Her flames and draconic presence can intimidate Dragonmen into submission 653.

Draconic Might

As a Black Dragon Princess, Onyxia possesses overwhelming physical force and authority over weaker dragonkin.

• Defeated a Dragonmaw-controlled young Black Dragon with a single counterattack 650.
• Subdued General Ubis, a massive Dragonman loyal to Deathwing 653.
• Killed Dragonmaw warriors with casual force in humanoid form 650.
• Commands dragonkin and Black Dragon guards in her Swamp of Sorrows lair 13.

Deception and Infiltration

Onyxia maintains elaborate identities and participates in strategic deception.

• Used the personas Selina Morningstar and Countess Katrana Prestor 3 23.
• Helped conceal the true cause of Deathwing’s injury from Nefarian and the Dragon Aspects 27 28.
• Marketed Blackwing fertilizer through goblin merchants while concealing its broader strategic purpose 22.

Weapons Development and Rocket Assault

Working with Deren and Chromie, Onyxia helps develop and deploy explosive weapons against Deathwing.

• Reinforced her lair with dragonfire for ammonium nitrate testing 20.
• Tested a rocket weapon intended to harm Deathwing, accepting injury during the trial 23.
• Fired twelve armor-piercing rockets at the time-frozen Deathwing, then returned with additional launchers after suspecting he was feigning death 25.
• Conducted aerial bombing drills with Jaina using an improved MK-2 bomb 65.

Equipment / Weapons / Items

• Staff — carried while posing as Selina Morningstar 3.
• Scale Space — stores items, including stolen Sand of Time 8.
• Lucky Gold Coin — received through Azeroth’s reward and used to influence outcomes 27 28.
• Armor-Piercing Rockets / six-tube rocket launchers — used in the ambush on Deathwing 25.
• Protective rune tools — used to carve runes onto the fertilizer operation’s reactor 21.

Relationships

• Deren Losen — partner, strategist, and later her husband/male consort. Their alliance begins as mutual survival and develops into affection, trust, possessiveness, and shared efforts to change fate 2 30 395 737.
• Deathwing (Neltharion) — father and principal enemy. Onyxia rebels against him and helps critically wound him with Deren’s plan 22 24 25.
• Sinestra — mother. Onyxia searches Grim Batol after learning Sinestra may be enslaved, participates in her rescue, and later helps her adapt to life in Theramore 650 659 686.
• Nefarian — elder brother and business shareholder. Their relationship is strained by his greed, Deathwing’s influence, and mutual distrust, but they occasionally cooperate 21 27 667.
• Chromie — initially hostile Bronze Dragon associate who becomes a trusted friend. They cooperate on explosives, cover for one another, and rescue each other from danger 8 116 449.
• Jaina Proudmoore — ally and frequent rival for Deren’s attention. They cooperate in combat and Theramore affairs despite recurrent jealousy 65 116 668.
• Alexstrasza — Red Dragon Queen whom Onyxia respects and is reluctant to fight. Alexstrasza later acknowledges Onyxia’s protection of dragons and children 65 126.
• Anveena — Sunwell incarnation living in Deren’s household. Onyxia is jealous of her closeness to Deren but also protects and cares for her 96 101 129.
• Morwena — memory-impaired young Black Dragon rescued from Dragonmaw control. Morwena comes to regard Onyxia as a source of hope and protection 650 652.
• Marshal Windsore — initially recognizes her as Katrana Prestor and confronts her, but gradually accepts evidence of her change 175 177.

Story Role / Major Arcs

Alliance with Deren

• Confronts Deren in King’s Valley after receiving an anonymous letter about her identity 1.
• Is convinced by his foreknowledge of Old Gods and her grim original fate to attempt changing destiny 2.
• Assumes the Selina Morningstar identity and begins operating with him in Treasure Bay 3.

Blackwing Fertilizers

• Establishes a hidden fertilizer operation with Deren, dragonkin workers, goblin merchants, and later Nefarian as a shareholder 13 20 21.
• Uses the enterprise to build resources, conceal experiments, and prepare for war against Deathwing 22 23.

Rebellion against Deathwing

• Tests weapons against Deathwing and prepares a rune trap for his arrival 23 24.
• Escapes Deathwing’s initial assault through Chromie’s intervention 24.
• Helps ambush and critically injure Deathwing with rocket barrages after an ammonium nitrate blast 25.

Protector of Theramore

• Defends Deren from Twilight assassins and treats threats to their home as threats to herself 111 169.
• Rescues Chromie and Kalecgos from the Dragonmaw Clan alongside Jaina 116.
• Remains wary of political and romantic attention directed at Deren, especially from other Dragonflights 448 449.

Grim Batol Expedition and Sinestra’s Rescue

• Enters Grim Batol to investigate Dragonmaw enslavement of Black Dragons and the possible capture of Sinestra 649 650.
• Defeats Dragonmaw forces, confronts General Ubis, and asserts authority over Deathwing’s Dragonmen 652 653.
• Is controlled by a Demon Soul fragment while attempting to save Sinestra, then reunites with her mother after the crisis 659 662 667.

Life after Fate’s Divergence

• Acknowledges that Deren changed her destined death in the Swamp of Sorrows 737.
• Lives openly in Theramore as Deren’s partner and as a protector aligned against Deathwing rather than serving him 698 741.

Trivia

• Onyxia has a pronounced love of gold and immediately takes interest in large fertilizer profits 20.
• She stole Sand of Time from Chromie’s staff and bargained for a larger share of the resulting delay fuses 8.
• She calls Deren her “pet” early in their partnership, while later accounts identify him as her male consort 13 395.
• Her original fate was to die in the Swamp of Sorrows and have her head displayed on Stormwind’s gates 2 737.
• She considers her home in Theramore her territory and reacts aggressively to uninvited guests or prospective lodgers 90 448.