Breezechaser is one of the few remaining ancient unicorns left in the Known World and hails from the Firelight Woods, a place far from Equestria. Breezechaser had a typical fillyhood for an ancient unicorn: known only as "little one", she traveled the woods with her mother and searched for her special talent so she could earn her name and be able to travel on her own. She always had a passion for galloping fast: she would weave silently between the trees and become almost one with the wind, even going so far as to say that the wind spoke to her and told her of places far away where purity was still bountiful. Ancient unicorns naturally crave purity; however, because the Firelight Woods are right on the edge of the Known World and are almost completely surrounded by Ley Lines, there isn't much to be found there. The only source of purity comes from the new plants that sprout from the frequent forest fires. One day, when Breezechaser was out galloping, the wind blew harder and stronger than it ever had before and she heard it whisper one distinct word: Equestria. She knew then that it was her destiny to follow the wind to Equestria, if such a place even existed. She convinced her mother that this was what she wanted to do, and her mother blessed her with her name and her freedom. For months Breezechaser galloped through many different lands, following the wind where it took her. She traveled through the remainder of the Fringe, crossed the Muudi Desert in Camelu, scaled the Himallama Mountains, and journeyed to Concordia, the capital of Cervidas. From there she traveled to Eternity's Bridge, the bridge that would allow her to cross the sea separating her from Equestria, but she found it in ruins and learned it had been destroyed centuries ago. A seafaring moose was willing to assist her in crossing the rolling ocean and Breezechaser gladly accepted. After days at sea, the pair arrived at Stableside, Equestria. The moose told her that, as a newcomer, the best place for her to head would be to the royal capital city of Canterlot. The closer Breezechaser got to the capital, the more pure energy she felt seeping from her surroundings. Finally she arrived at Ponyville, where she was overwhelmed by the amount of purity in the hearts of all the ponies there. It was then that the wind stopped blowing altogether for a few seconds, and she knew she had found her true home.
Breezechaser is strong, wild, and fierce when she needs to be. She stands up for her beliefs and tends to be stubborn when the beliefs of others clash with her own. Despite this, she's a natural pacifist: she much prefers to walk away from a situation than engage in any kind of combat. She believes all creatures big and small have the right to live freely and tries to help out others when she can. The only magic she can naturally do is healing wounds and cure poisoning; the one other spell she's capable of is levitation, which she learned under the tutelage of Twilight (who found Breezechaser to be an excellent new research subject). She gets along with other ponies fine, but prefers her solitude and will usually hide from others if they come looking for her. She lives in the Everfree Forest in a small cavern lined with leaves and ferns.