Personality: When Dani first arrived at the institute she was very much a loner, and very self-reliant. She would follow her own instincts and often behave in what others deemed a reckless manner. Over time she learned the trust those around her, and although she is still very driven she knows nows he has friends who can help her.

Strength: Moonstar possesses the normal human strength of a girl of her age, height, and build who engages in extensive regular exercise.

Known superhuman powers: Moonstar is a mutant with the superhuman psionic power to create three-dimensional images of certain visual concepts from within the minds of herself and others. Originally, Moonstar could only create images of the objects of other people's greatest fears. Later, she learned how to reach into another person's subconscious and project an image of the object of that person's "heart's desire." Still later, under Charles Xavier's further training, Moonstar learned to use her power to derive and project more specific images from another person's mind that were unrelated to such strong emotional states. Moreover, she learned how to project such images around herself and others in order to alter the appearance of herself and others. For example, once she and her fellow student Cannonball, neither dressed impressively at the time, had to find Wolfsbane at a stylish hotel. In order that she and Cannonball would look as if they belonged in the hotel, Moonstar made herself and Cannonball look like the desk clerk's mental image of the ideal wealthy guests for the hotel. Most recently, Moonstar has learned to project three-dimensional versions of images from her own mind, such as life-size images of the students training in the use of their powers.

Despite the fact that Moonstar must probe a person's subsconscious in order to discover the mental image she wishes to project, she is not a true telepath. Although she can consciously initiate the mental probing in order to find and project an image, the probing process itself is not governed by her conscious mind. Hence, Moonstar does not consciously know what the image she seeks in another person's mind is (in any more detail than that it is the image of the object of his or her greatest fear, or that it is the image of his or her ideal customer, or whatever) until its image actually appears in three-dimensional form before her.

The three-dimensional images that Moonstar causes to appear are similar to holograms, although they are created by psionic energy rather than by lasers, and can be seen by anyone in their vicinity. However, only the people from whom Moonstar derives the images will perceive them as "real," indistinguishable from the real persons or objects they portray. To other people, the images are recognizable as illusions. The illusions are immaterial, composed of psionic energy.

Moonstar can use her power to derive and project mental images on several people at once. Each "victim" will see a different image, corresponding to his or her own individual concept of the kind of image that Moonstar seeks. If, for example, she sought to make a group of people each see the object of his or her greatest fear, probably each person in the group will see an image of a different person or thing. Probably if she caused each member of the X=Students to see an image of Professor Xavier, each member would see a subtly different image, according to his or her own perception of Xavier's personality, handsomeness, and so forth. However, even though each "victim" in such a group would see only one image, Moonstar herself and anyone else in the vicinity would see each of the images drawn from the minds of each of the "victims."

The seeming materialization of the object of his or her greatest fear of desire invariably has immediate emotional impact on the person from whom Moonstar has drawn the image she projects. Moonstar's images dissolve and cease to exist as soon as she ceases to maintain sufficient concentration to keep them visible.

Moonstar is limited in the use of her power by her need to see the person from whose consciousness she derives her images. She can use her power on a person even if he or she can only be seen by Moonstar through binoculars. However, she cannot draw images from a person who is standing only a few feet from her, but behind something she cannot see through. Nor can she derive images from a person whom she sees via live television but who is not actually within her vicinity.

At first Moonstar could not control her image projecting powers, and she would draw and project images without consciously willing to do so. However, she has learned to control her power due to Charles Xavier's guidance and her own growing maturity, so that now her power operates only when she wills it to do so.

Moonstar's ultimate potential is to be able to cause her three-dimensional images to become tangible entities of psionic force. She has so far only been able to make use of this full potential temporarily when her abilities were briefly augmented psionically by Charles Xavier when he was mentally possessed by a member of the alien Brood.

Moonstar can also use her power to derive and project images of the objects of fear or desire from the minds of animals. The only difference is that the animal from which she derives the image will be the only being to see it. She can even use this power on fish and certain insects, although not on animals with intelligence any lower than these creatures. Moonstar can derive mental images of her winged horse Brightwind's objects of fear and love even if Brightwind is beyond the range of her sight, and project such images to him over a great distance. The limits of her powers with regard to Brightwind are unknown. She has summoned him in the past by projecting an image of herself, whom he loves, to him, even though he is out of her range of sights.

Moonstar can achieve a quasi-telepathic rapport with higher animals including primates (but not including human beings), members of the dog and cat families (including wolves and mountain lions, for example), and birds. She can sense their feelings, consciously perceive images in their minds, and even see through their eyes. However, since an animal's ability to conceptualize is highly limited, she is limited as to what she telepathically can learn from an animal.

Moonstar also has a quasi-telepathic rapport with her winged horse Brightwind; possibly Brightwind has psychic abilities of his own that make the rapport easier.

While accompanying Valkyries in Asgard, Moonstar was endowed with the ability to perceive and sense the coming of Death. She could perceive a "deathglow" surrounding a person who is in serious danger of dying; although normal people cannot see the glow. Moreover, Moonstar could perceive Death incarnate, in whatever form it takes to claim the person with the deathglow. A person surrounded by the deathglow is in danger of death, but might still be saved from dying (until he or she meets his or her inevitable end at some later time under different circumstances). In fact, due to her new Valkyrie powers, Moonstar can do physical battle with Death itself and death gods. She has created an illusory "Cheyenne ghost-shaft" drawing upon an image in her own mind, and had successfully wielded it as a weapon against Death itself and the Asgardian death goddess Hela. She had succeeded in driving away Hela when she attempted to claim the soul of Wolverine, and in driving away Death itself when it came for Margaret Power, the mother of the four original members of Power Pack. Both Wolverine and Mrs. Power returned to full health.

She no longer retains her Valkyrie powers.

Abilities: Moonstar is a better than average athlete for her age, in large part because of all the times she has spent on her own in the wilderness. She has a fair knowledge of hand-to-hand combat, and is a particularly good horseback rider and swimmer.

Transportation: As Mirage, she had a winged, Asgardian horse, Brightwind (now known as Darkwind), who is capable of flight. His top speed is unknown. She still has Darkwind even though she no longer a Valkyrie.

One night she created a symbolic vision of her parents' deaths. Shortly thereafter her parents disappeared during a trip to the mountains. Moonstar believed them to have been killed, and her dreams were haunted thereafter by a vision of a demonic bear, whom she believed to be responsible for their deaths. In fact, Moonstar's parents had been transformed into the demonic bear by an as yet unrevealed cause. This bear was intended to work the same transformation upon Moonstar, but the spells of Black Eagle kept the demonic bear away from her.

After her parents' disappearance, Moonstar was taken in by their friends, the Roberts. Pat Roberts, their son, and Danielle were very close friends. After she had been at the Roberts's home a week, Moonstar was at Sunday dinner with them when Pat said something to her that provoked her. Moonstar lashed out at him with her psychic power, unaware she had it. The images of the objects of Pat's greatest fear and desire appeared before Pat and his family as a result. Moonstar fled to the mountains, where Black Eagle raised her over the following years, Finally, Black Eagle sent a letter to Professor Charles Xavier, who had become a friend of his son, William, Danielle's father, when both Xavier and William were in the army. Xavier and William had become blood brothers, and Xavier had become acquainted with Black Eagle. Black Eagle believed that Xavier could provide Moonstar with the training she needed to utilize her powers best, and asked him in the letter to do so. When Black Eagle asked Moonstar to go with Xavier when he came, she angrily refused, believing all Caucasians to be her enemies. In her anger she unintentionally created an image of Black Eagle's death, as he had foreseen it in a prophetic dream. Black Eagle ordered her to go with Xavier, and she agreed.

But before Xavier arrived, Black Eagle was murdered by agents of Donald Pierce, a member of the Inner Circle of the Hellfire Club who intended to overthrow its leader, Sebatian Shaw. Pierce was determined to kill Xavier as well as other superhuman mutants. Moonstar, unaware of Pierce's involvement, vowed to take vengeance for her grandfather's death. She soon found herself hunted by Pierce's agents, but she was saved by the mutant Karma, who arrived along with Xavier. Xavier told Moonstar about Pierce, and she said she would work with Xavier to get her revenge on Pierce.

After Moonstar helped Xavier and other young mutants he had enlisted in defeating Pierce, she and the other young mutants remained as students at his Institute. Moonstar decided to remain with them to honor her grandfather's request. Despite her initial hatred of all Caucasians, she soon came to regard her fellow students as close friends of her regardless of their racial background. Under Xavier's guidance Moonstar not only learned how to keep her powers under control, so that she only used them when she so desired, but also learned how to use her powers to create images other than those of the objects of people's fears.

With Black Eagle dead, the demon bear was no longer prevented from seeking out Moonstar. She fought the bear outside Xavier's mansion and it nearly killed her, The X-Men Reserve Team then battled the bear, and one of them, Magik, used her soulsword to release Moonstar's parents from the spell they were under, returning them to their human forms. Moonstar was reunited with her parents, and she eventually recovered completely from her injuries, thanks to the Morlock Healer.

Later, Amora the Enchantress kidnapped the some of the students to Asgard. While she was there, Moonstar rescued a winged horse named Brightwind from hunters. Moonstar herself was rescued from the hunters by Mist, one of the Valkyries. ("Mist" is an English translation of her name.) The winged horse was one of a herd of such creatures belonging to Odin, ruler of Asgard. The Valkyries themselves ride such horses. Moonstar had an immediate psychic rapport with the horse, whom she named Brightwind after her pony on Earth, and the horse selected her to be his rider. This "bonding" bestowed part of the Odin power upon Moonstar, and thus while with the Valkyries, Moonstar somehow became endowed with the Valkyries' power to perceive the coming of death. When the students returned to Earth, Brightwind came with Moonstar.

Soon thereafter Professor Xavier left Earth for an indefinite period of time, leaving his school and the X-Men in the charge of his former enemy Magneto. Under the psychic influence of the Hellion named Empath, Magneto closed the school and sent the students to study with the Hellions' teacher, the White Queen. Mirage instead went to her parents' ranch in Colorado.

While with her parents, Moonstar ran into an old friend, Pat Roberts, who she had betrayed when her powers were first emerging. When Pat was injured and stuck in a blizzard, Moonstar saw the death mark on him and fought Death in the form of an old gunfighter. Moonstar defeated Death, but the next day Death returned in the form of an old Indian woman who convinced her to let him go.

When Magneto realized he was tricked into transferring the students, he confronted Emma Frost and through mind probes it was determined that they wished to return with Magneto, though remaining rivals with the Hellions. Moonstar returned to assist in the rescue of the students from the White Queen and return them back to Xavier's School for Gifted Youngsters. It was during this period that Moonstar's ability to make her spirit images real emerged after an encounter with the High Evolutionary during the Evolutionary War, when Dani was "evolved" by one of the Evolutionary's machines.

When Hela attempted to take over Asgard, Dani and the other Valkyrior were infected with a mystical fever. Hela planned to use Moonstar to gather humans to her forces to defeat Thor. Transported back to Asgard, Moonstar fell under the sway of Hela and nearly killed Odin. Hela was defeated by the combined forces of the X-Men and the Asgardians, and the X-Men were returned to Earth; all except Moonstar who chose to stay behind, hoping to repair the damage as a Valkyrie.

Moonstar was eventually exiled from Asgard, and her winged horse Brightwind was renamed Darkwind. It was then that she returned to the Institute.