Riven

"You brave, devoted, pathetic fool."

- Riven scolding Uldren Sov in the guise of Mara Sov

Riven of a Thousand Voices is a powerful Taken Ahamkara that formerly served Mara Sov within the Dreaming City. She now corrupts the city from its heart, and worked her way into Uldren Sov's mind like a parasite, warping his will in an attempt to open the gate to the Dreaming City and enable herself to enter the material world. She is the true main antagonist of Forsaken, and the final boss of the Last Wish raid.

Accompanying the Queen
Riven was born as one of the last remaining Ahamkara in the Solar System around the time of the Great Ahamkara Hunt. She was found by Uldren Sov and presented to Mara Sov. Through the years, she grew and accompanied Mara Sov in her ventures, becoming one of the most trusted and significant members of her entourage.

Becoming Taken
Shortly after the Battle of Saturn, Oryx, the Taken King raided the Dreaming City alongside his Taken forces, where he quickly took Riven as part of his army. She remained within the Dreaming City, having become an incredibly powerful weapon of Oryx at the time - to the extent where her mere status as a Taken drove the Nine into a complete frenzy.

A New Master
Following Oryx's death, Savathûn assumed control over the Taken, which included Riven. Riven quickly became one of the most prominent leaders of Savathun's Taken army, and she somehow retained her will, using it to corrupt the Dreaming City from deep within, along with the mind of Uldren Sov, who had ironically been the one to originally discover her as an infant many years prior.

Traits
As an Ahamkara, Riven is a calculating figure and a master of manipulation. She sadistically enjoys driving one into complete madness, as she did with Uldren Sov through speaking to him in his head under the guise of Mara Sov. Additionally, Riven possesses disturbing abilities and a terrifying level of cunning that is only rivaled by her master, Savathûn. Her mastery of corruption directly led to the death of Cayde-6, and the events of the entirety of Forsaken as a result.

Riven has retained her free will even after being Taken.

Trivia

 * Though she is Taken, Riven is the first Ahamkara ever observed in the Destiny series.
 * Riven is the second Taken entity that retains a sense of free-will and independent thought. The first being Malok.
 * She is the first female final Raid boss.
 * It is not elaborated on if she was actually the Voice of Riven, or if it was some sort of servant or projection of her being.
 * Riven's epithet, "of a Thousand Voices," is reminiscent of that of the Worm God Xol, the "Will of the Thousands". It is unknown what significance this similarity has, if any.
 * Riven is by far the largest Raid boss in Destiny history, surpassing Argos, Planetary Core and Oryx, the Taken King.

List of appearances

 * Destiny 2
 * Forsaken