Narset's History
Narset is a human planeswalker, and former khan, from Tarkir.
Khan Narset of the Jeskai Way was a master martial artist, sage, and scholar with a great destiny on Tarkir. She was known to have a brilliant mind, always committed to furthering her knowledge, but this intense curiosity meant that she often found it hard to concentrate on a single matter. She also noticed that she processed information and other types of input differently from other people. She had "seen" imaginary worlds in her childhood that returned in visions while she meditated. She slightly resented the rigidness of the Jeskai Way but forced herself to fulfill her duties as Khan. Narset seemed to have some friction with the Jeskai elders who had plans and agendas of their own while seeking to make her a puppet leader and conducting operations behind her back (sending assassins after the rogue monk Taigam, her former pupil). Even her bodyguard, Shintan was more loyal to the elders than her and reported on her actions to them.
Narset was fascinated by the dragons of the past and of Ugin in particular. She hoped to find a way to use Ugin's runes to somehow stop the bloodshed on Tarkir.
Nearly ten years after she became khan, Narset was approached by a Kirin which guided her to the suffering Sarkhan Vol. She could sense the echo of Ugin's spirit around Sarkhan. Sarkhan eventually told her of the secrets of planeswalkers and the existence of Nicol Bolas. She confided in him that Ugin was Tarkir's soul and with his death, the plane was thrown out of balance. She helped to calm his mind and provide him some peace before agreeing to bring him to Ugin's Tomb. At the tomb, they were attacked by a maddened Zurgo Helmsmasher who attempted to kill Sarkhan. Narset fought off Zurgo and injured him before urging Sarkhan to enter Ugin's Nexus, promising to guard his passage. At the apex of their fight, she was distracted by Sarkhan which enabled Zurgo to land a killing blow. With the last of her strength, she urged Sarkhan to keep moving into the nexus. Sarkhan Vol swore revenge against Zurgo as the orc stood over Narset's body and he made his way into the center of Ugin's Nexus.
In the new timeline formed by Sarkhan, Narset gained the personal notice of Ojutai himself at a young age. She attracted the dragon's attention as she would often mimic the exercises performed by both the dragons and her elders, mastering them after no more than a casual glance. Ojutai recognized hers as a mind with the potential for nearly limitless growth, so she was taken on as a student. Narset quickly mastered not only the exercises but the draconic language itself. But as Narset grew, she began to feel restless. She harbored a longing, although she was unable to identify what for, and she started to question whether or not Ojutai truly knew all the answers to the questions of life.
When, in relatively short order, Narset achieved the status of master, she cared more for the autonomy that the position granted than the highly sought-after honor. She spent many a day alone, exploring the deepest and dustiest cavities in the Ojutai sanctuaries, slowly piecing together clues that illuminated the forbidden past. Her peer, Taigam, warned her of the danger in seeking out knowledge without the dragonlord's permission, but Narset saw no harm in research.
She discovered the truth of the past of Tarkir — it was not always a world ruled by dragons as the teachings of Ojutai claimed; at one time humanoid khans led mighty clans that dominated the land. Narset also learned of a powerful spirit dragon from whom all dragons were formed. It was this Ugin that most interested her. She could feel something more in the histories that described him, something similar to her own wanderlust. She took to meditating in secret chambers, spending hours that crept into days and even weeks without making an appearance above.
Eventually, she was discovered and confronted by Taigam, who had hoped to use her downfall to further his own stature. Narset overpowered him and made her escape, while Taigam labeled her a heretic and promised to inform Ojutai of her transgressions. Her planeswalker's spark ignited while she learned the truth about Tarkir's past and Ojutai's subjugation of the Jeskai. However, she chose not to travel to another plane and instead continued her search for knowledge on Tarkir. Eventually, she encountered her old master at the riverbed where they had first met. At first afraid of the dragonlord's wrath, Narset admitted to knowing the truth of Tarkir to him. Ojutai, sensing the same need for discovery that consumed her as his student, gave her his blessings and encouraged her to continue seeking knowledge and enlightenment.
When Sarkhan finally found her, Narset was on her way to Ugin to find more answers. She also planned to visit the Atarka lands, where she expected to find more ancient secret stories, carved in mammoth ivory. Although aware of her new abilities, she didn't plan to leave Tarkir again any time soon.
Narset was lured to Ravnica by the Interplanar Beacon, and immediately became trapped there due to Bolas's use of the Immortal Sun. Alongside many other planeswalkers and Ravnicans, she fought against the Eternals of Bolas' Dreadhorde.
During the invasion, the trapped planeswalkers (including Narset) got together with Ravnican leaders to strategize. It's not clear if Narset fled Ravnica when Chandra disabled the Immortal Sun or stayed to help the Gatewatch in their fight against Bolas, although the former would be out of character.
Narset spent some indeterminate amount of time on Ikoria, to move past her confrontation with Bolas. She sought enlightenment in this world where the mana combined in ways similar to her former clan. She bought books at Skysail, but was mostly seen around Raugrin.