Xivu Arath, God of War

Xivu Arath, formerly known as Xi Ro, is a Hive Knight and youngest sister to Savathûn and Oryx, the Taken King. Together with her two siblings, she was a progenitor of the contemporary Hive species and one of its chief gods, having made a pact with the Worms of Fundament. She is driven to become the mightiest warrior in the universe. After the Hive's conquest of the Harmony, Xivu Arath and her Hive left her siblings for deep space, claiming Oryx had grown too powerful for her to accept. Her current whereabouts are unknown.

Origins
Xivu Arath was born Xi Ro on the gas giant Fundament with her sisters Aurash and Sathona; her father was the Osmium King, ruler of the Osmium Court. She was a member of a short-lived, proto-Hive species called "krill" whose original homeworld had crashed into the giant millions of years ago. As a young "krill" she was fascinated by her surroundings, attempting daring feats that would have killed lesser beings; she took six of the stormjoys' bait-stars because of this. Above all she wanted to be a warrior, a Knight like her father's warriors.

When her father became mad and raved about the Syzygy, and the Helium Drinkers invaded at the urging of Taox, Xi Ro used her bait-stars to help her sisters escape and comforted Aurash as they fled their home. Together with her sisters she swore a blood-oath on the mast of their ship, upon her left eye, to avenge their father and kill Toax. When they salvaged an ancient, high-tech ship from the Shvubi Maelstrom, Xi Ro wanted to sell it to raise an army and kill Taox immediately, but was convinced by Sathona that it was worthless.

During their aimless journey at the behest of Sathona (who was guided by their father's worm-familiar) Xi Ro cleaned up the ship and attempted to take her sisters' minds off their task. Eventually, when Sathona fretted they would not be able to avenge their father, and Aurash concluded they would have to dive, Xi Ro was initially afraid but understood. Xi Ro warned them, however, that this was how the crew had died, but Sathona, urged on by the Worm, agreed with Aurash. The sisters took the needle into the deep. They finally reached a point where they could use the ship's sensors on the oceans. To their horror, they discovered that the Syzygy was real, and that Fundament's moons had already aligned. Just then, they were encountered by the Leviathan, a creature long spoken of in proto-Hive myth. The Leviathan warned the sisters that they needed to turn back, or else would unleash disaster upon the universe, saying that they faced a choice between the Light, which offered civilization, and the Darkness, which offered only violence. However, the Leviathan offered no hope to the sisters to avoid the Syzygy. Sathona then revealed the Worm's help to her sisters, and how it urged them to go down. Rejecting the Leviathan's entreaties, the sisters dove into the core.

Reaching the very center of Fundament, the three sisters found the Worm Gods: Akka, Eir, Ur, Xol, and Yul. The Worm Gods offered the three sisters a chance for the proto-Hive to escape Fundament as well as achieve immortality. All they had to do was take the Worms larvae into them as symbiotes and spread them among the proto-Hive. The Worms posed the caveat that the sisters must never cease their natures: Xi Ro must always test her strength, Sathona must always be cunning, and Aurash must always try to understand. The sisters accepted the pact and became the first Hive: Xi Ro took the Knight morph and became Xivu Arath, Sathona took the Mother morph and became Savathûn, and Aurash took the King morph, transforming into a male and became Auryx, the King of the Hive.

List of appearances

 * Destiny
 * The Taken King