Created by writer Chris Claremont, and artists Sal Buscema, Glynis Wein, and Bob McLeod, the character first appeared in The New Mutants #8 (October 1983).

In X-Force #87-90 (1997), Magma appeared as an antagonist to her former teammates, but her villainous personality was short-lived as she returned to her affiliation with the X-Men in semi-regular publication in New Mutants Vol.

Magma (Amara Juliana Olivians Aquilla) hails from the fictional country of Nova Roma ("New Rome"), a colony of the Roman Republic reportedly founded shortly after the death of Julius Caesar in 44 BC.

Caught up in a deadly power struggle between Selene and her father, she disguises herself as an indigenous Brazilian and is captured by the New Mutants, who soon discovers her true ethnicity.

[18] It is later revealed that Nova Roma is not Roman, but was created by Selene using mind control on British citizens to recreate Rome, and that Magma's real name is Allison Crestmere.

Due to the events of House of M and the Decimation of mutants, Magma loses her boyfriend while the two are exploring the inside of a volcano at the exact moment that the depowering wave of the Scarlet Witch runs across Earth.

[30] During the battle, Amara turns Dust into glass by superheating her sand form, shatters Rockslide (who later reforms), and is eventually taken out by Wolf Cub.

[31] It is eventually revealed that "Cyclops" is in reality Donald Pierce, the former White King of the Hellfire Club, who is posing as the X-Men leader using an image inducer.

[33] After receiving an anonymous tip in Colorado about a young mutant endangering a small town, Dani and Shan are sent to investigate and calm the locals.

During their mission, Magik reappears back at the X-Men's base in San Francisco after teleporting off into the future after the events of "X-Infernus".

[46] After arriving back on Utopia, Amara hears a series of explosions, and she, Namor, and X-23 find that Donald Pierce has destroyed the X-Men's hangar.

[49] After the events of the "Second Coming" storyline, the New Mutants take a vacation, which is interrupted when Magik discovers that Pixie has been kidnapped by a mysterious military faction known as Project Purgatory.

[53] She is eventually freed by Dani and upon exiting the compound, sees that Project Purgatory have summoned the Elder Gods and torn a hole right through to Earth.

[54] After Dani Moonstar learns Cyclops is still keeping the New Mutants together to settle some of the X-Men's unfinished business; several members leave due to injury or personal issues.

Impressed by Amara's display of power, Mephisto apologizes and offers to help the team in exchange for a single date with her.

[57] Arriving in Hel, Sunspot is upset Amara made a deal with the devil when they come across a battle outside Hela's palace between the undead and the Draumar.

[69] It was also discovered by the X-Men that Mesmero had used his powers to brainwash the members of his Brotherhood to join the team and force them to carry out those attacks.

[71] Later when Rachel Summers is injured on a mission, Amara is seen watching over her in the medical bay with Cecilia Reyes, showing great concern over her condition.

[73] Mesmero eventually escapes from the Box, a prison designed to hold mutants and persuades the new Pyro and Avalanche to help him get revenge on Lydia Nance by attacking her at a fundraiser.

[75] After she recovers, Amara joins Iceman's squad of interim X-Men consisting of Rogue, Ink, Armor, Magik and the new Pyro, Simon Lasker.

Although Magma has triggered small earth tremors without taking on her energized form, she has never been seen to use her power to control lava while in her ordinary human appearance.

[89] If she is not in contact with the ground or the physical shock to her system from a single injury is too great, the regenerative power is no longer in effect and she may die.

However, this power has been inconsistently portrayed as in some of her recent appearances in X-Men: Gold show Magma flying but also being carried around by Rogue and Captain Britain.

[93] Chase Magnett of ComicBook.com described Magma as a "charming firebrand, both literally and figuratively," writing, "Creators ought to ignore whatever parts of her past that confuse the character and focus on a personality that warms up a room even more than her powers might.

The assassination attempt is actually a provocation on Apocalypse's behalf, who wants the Human High Council to amass its fleets, making them more vulnerable to be destroyed.

Later at the dinner, Amara defended the Stepford Cuckoos, saying that the Studio wouldn't be running as smoothly if the girls were not around, after a group were disgusted by how the sisters flaunted their familial relationship.

[97] While not observed, Magma was presumably returned to the real world when X-Man decided to release the mutants he forced to live in his plane of existence.

Magma and Sunspot become the Chief Arbitrators of the Lords Cardinal, and create an idyllic state for mutants, while regular humans are left to fend for themselves.

[102][103] An American version of Alison Crestmere / Magma appears as a playable character in X-Men Legends,[106] voiced by Cree Summer.

[107] Initially held prisoner by the Genetic Research and Security Organization (GRSO), the Brotherhood of Mutants attempt to kidnap her so they can use her to power their gravitron device and cause meteor showers around the Earth.