(Earth-616) Xarus is a fictional character appearing in American comic books published by Marvel Comics.

Xarus is the son of "Vlad Dracula". Xarus becomes inraged with humanity encraching into the territory of vampires. Leading him to becoming unhappy with the leadership of his father, resulting in Xarus creating a secret alliance with the leader of various vampire sects; the Claw Sect (warriors), Mystikos Sect, Charniputra sect, Atlanteon Sect, Mosksha Sect, Siren Sect, and Nosferatu sect, all to overthrow his father. They succsefully did at a centennial meeting of all vampires, together Xarus and his allies cut off Dracula's head. ^[1]

His allies in Mystikos developed devices that neutralize the harmful light frequencies to which vampires are vulnerable. Xarus saw an opportunity to use these devices to establish a stronger, more dominant position for vampires in the world. He distributed them to his allies, who launched a raid on Krieger Sect's fortress, eliminating their senior leadership. Xarus instructed the Claw Sect to hold off on declaring loyalty to him, allowing them to remain neutral and open to potential traitors seeking an alliance, including his brother Janus and the peaceful Anchorite Sect. ^[1]

After the Siren Sect's attempted betrayal, Xarus surprisingly spared their leader, Alyssa, allowing her to live and continue serving him. However, Alyssa betrayed him again by giving Janus one of the light-deflecting pendants, helping him escape after the Claw Sect had turned on Xarus. Surrounded by a small army of vampires wearing the pendants, Xarus was declared Lord of the Vampires. ^[1]

Now with greater power, Xarus set his sights on world domination. He planned to convert all mutants in San Francisco into vampires, starting with infecting Jubilee to draw in her fellow X-Men. Wolverine was the first to take the bait, quickly converted with no resistance from his healing factor.

Xarus’ actions against mutantkind caught the attention of Cyclops, who reached out to him directly. Xarus tried to persuade Cyclops to join forces, arguing that both their kinds had been mistreated by humanity. Cyclops firmly rejected the offer, exactly as Xarus had anticipated. With this response, Xarus moved forward with his assault on Utopia. However, the X-Men and Atlanteans were prepared. They revealed that Wolverine’s healing factor had been deactivated before he could revert to his human form, and Xarus watched in disbelief as his entire task force was destroyed. Though he didn’t have time to regroup for another attack, Xarus was determined to defeat the X-Men. Just then, Dracula made his return, resurrected by the X-Men. Xarus attempted to rally his forces to stand against his father, but found no support, forcing him to fight alone. In the end, Dracula exacted revenge, ripping off Xarus’ head and killing him.

The X-Cutioner is an alias used by two fictional characters appearing in Marvel Comics.

Carl Denti, created by Scott Lobdell and Jason Pearson, first appeared in The Uncanny X-Men Annual #17 (June 1993).^[2] A former FBI agent obsessed with stalking mutants who kill humans, he uses an array of both alien and Earthly technology in his quest.

Denti's father was an army officer murdered for following an illegal order, which would later interfere with his crusade against mutants. As an F.B.I. officer, Denti partners with Fred Duncan, a contact of Charles Xavier's and a member of the mutant supporter network known as the Xavier Underground who maintains mutant criminal records and stockpiles the weapons and technology of the X-Men foes. Denti takes the files, weapons, and technology for himself and assumes the name X-Cutioner, with the proclaimed mission of killing any mutant that has killed other people first. Denti is so "dedicated" to his mission that he will use lethal force to stop anyone obstructing his lethal "justice".

His first successful target is the mutant Tower,^[3] followed by an unsuccessful attempt on Mastermind who was detained on Muir Island. Mastermind survives only to die of natural causes, because the X-Cutioner was delayed when he encountered the X-Men. He next targets the White Queen, only to be stopped by the father-and-son duo of Cyclops and Cable. He later tracks down Skin for the murder of Angelo Espinosa, not knowing that the two boys were the same person. Working through the ranks of X-Men characters, he next encounters the Punisher, Rogue, X-Man and Gambit. After teaming up with Gambit, Denti encounters a new version of X-Cutioner (see below) with similar technology.

A normal human with specialized training, X-Cutioner's weapons and technology include alien Z'nox sensors, Sentinel propulsion units for flight, Shi'ar body armor, a personal force field, a teleportation unit and various other weapons.

An unidentified version of X-Cutioner, created by Marc Guggenheim and Ardian Syaf, first appeared in X-Men Gold (vol. 2) #2 (April 2017).^[4]

The Carl Denti incarnation of X-Cutioner appears in X-Men '97, voiced by Lawrence Bayne.^[5] This version is a leading member of the Friends of Humanity.

Xi'an (Xi'an Chi Xan) was created for the Marvel 2099 imprint. The character was created by John Francis Moore and Ron Lim, and first appeared in X-Men 2099 #1. He is the founder and has been a leader and enemy of the 2099 X-Men.

Xi'an was born into a well-respected family. However, when his mutant power to break down the molecular structure of whatever he touches with his left hand manifested, his parents turned him over to a genetics lab to save their own reputation. Before reaching the lab, Xi'an destroyed his restraints and escaped. He spent much of the rest of his youth on the streets, in and out of gangs before joining The Lawless, gaining the nickname "The Desert Ghost". After being chased by bounty hunters in Saigon, Xi'an left the Lawless and returned to the US, with a more refined demeanor and a new purpose, to create his own version of the X-Men to help fight for genetic equality.^[6]

The team almost immediately runs into trouble when Xi'an is accused of murdering casino mogul Noah Synge. The team hurries to clear his name, but in the course of things Xi'an is shot. Instead of dying, his body encases itself in a cocoon. He soon emerges from this cocoon fully healed. This trauma also triggers a secondary mutation, giving Xi'an the power to heal with his right hand.^[7]

Xi'an then leads the team to find Mama Hurricane, who was a runner for the mutant underground railroad during The Great Purge of mutants some decades prior. They find her and gain knowledge on the Driver, her next contact within the railroad, but are then sidetracked to El Paso, where Krystalin has uncovered evidence of an Archangel-like mutant. They discover a hidden base where Master Zhao, the leader of the last known iteration of the X-Men, has kidnapped Krys and Xi'an's former Lawless teammate Victor Ten Eagles. Over the years, Zhao has made himself mentally unstable with drugs to preserve and enhance his psychic abilities, and plans to brainwash Xi'an's team into his own X-Men. However, in his initial assault on Xi'an's mind it is revealed that Xi'an's prior Lawless personality has been lying dormant, as a sort of alternate personality. In order to defeat Zhao, Xi'an returns to his more amoral personality, knocking the former mutant leader into a coma with a psychic backlash.^[8]

Having returned to his old ways, Xi'an leaves the team, attempting to locate the Driver on his own, though he is followed by Skullfire. After finding the Driver, they are attacked by Brimstone Love, leader of the Theatre of Pain. Xi'an joins the Theatre, returning to El Paso to steal the bodies of Zhao and his failed attempt at genetically creating X-Men with powers similar to the originals, One-Eyed Jack, Psycho K and Wingspan.^[9]

During his initiation into the Theatre, Xi'an was forced to relive some of his most traumatic memories, fighting holographically-produced villains from his past. As a final rite of passage he refuses the aid of his moral half and is dubbed Controller X. Using the psychic energy of the comatose Zhao, Xi'an creates a symphony of suffering and pain for the Theatre on a scale they had not seen before. During the performance, the team of X-Men he had created infiltrate the Theatre and rescue him. New X-Man and former Theatre of Pain slave La Lunatica uses her mutant ability to bring to the surface all of Xi'an's past and present misdeeds, finally balancing his turbulent psyche, reverting him to his calm and moral self. With this comes the revelation of all he has done and a heavy-hearted need to atone for his sins.^[6]

Xi'an then travels with the X-Men to the mutant City-State of Halo City, where he leaves the team to open a clinic and heal people with his powers.^[10] He briefly rejoins his remaining Lawless brethren; Auntie Maim, Mongrel and Victor Ten Eagles, to escape The Foolkiller, a human hunting down members of The Lawless for their part in the massacre of his hometown.^[11]

With the rest of humanity, Xi'an retreats to the Savage Land as the polar ice caps begin to melt and flood the world. He helps to rebuild civilization, often getting in heated arguments with the surviving humans. His long-time friend Victor Ten Eagles attempts to help him while Morphine Somers attempts to disrupt the fragile peace within the Last Refuge, believing mutants should rule by right of genetic superiority. The remaining humans band together, but the series is cancelled before more of the storyline can be explored.^[12]

In the finale one-shot of the 2099 continuity, Manifest Destiny, Xi'an is a leading figure at the Savage Land refuge, now named the Xavier Colony.^[13]

Xilora, formerly known as Xilo, is a fictional character appearing in American comic books published by Marvel Comics. He was created by Gerry Duggan and Pepe Larraz and first appeared in Planet-Size X-Men #1 (June 2021).

Originating from the ancient Threshold civilization two billion years ago, the mutant that would eventually take the name Xilo was one of two survivors of Threshold's fall, the other being Okkara.^[14][15] During the fall, he was injured so severely that he lost many of his memories and needed millions of years to heal and recover.^[16] He remained with Okkara and served as its defender, taking many different names over time, until the island was attacked by the forces of Amenth and split into Krakoa and Arakko. He, along with all the other Okkaran mutants, was voluntarily sealed away in Amenth with Arakko to stop the invasion.^[17] For the next several thousand years, he served on the Great Ring of Arakko as the chief historian, consulted on all matters of history and lore.^[18] At some point, he took the name Stulgid.^[19] After Arakko and its inhabitants returned to Earth, Stulgid changed his name to Xilo-Who-Was-Stulgid and later to simply Xilo.^[18][20]

Xilo is enlisted to help terraform Mars into a suitable home for Arakko, using his powers to fertilize soil and create a breathable atmosphere.^{[20][21][22][23]} When the Eternal Uranos attacks Arakko, Xilo is gravely injured, reduced to 13.5% of his original body mass and losing millennia of memories. Having lost a great deal of his identity, he renames himself That-Which-Was-Xilo to reflect this.^[24][25]

When Genesis returns to Arakko and incites a civil war, That-Which-Was-Xilo sides with Storm. To survive in his weakened state, he partially merges with the Fisher King, becoming dormant and occasionally warning his host of danger.^[26][19] During the final battle of the war, the Fisher King gets close to a blinded Ora Serrata. That-Which-Was-Xilo seizes the opportunity to leave the Fisher King (killing him in the process) and take control of Ora. He takes the new name Xilora, unifies the Great Ring of Arakko, and declares the end of the Genesis War.^[27][28][29]

Xilora is an omega-level mutant whose body consists of an insect collective that can able to act as a single being or separate into innumerable tendrils. He is able to merge with other beings, replacing their flesh with himself and manipulating them according to his intention. As a collective, he can replace parts of himself and is functionally immortal, having been alive for at least two billion years.^{[15][30][31][32]} If his body is damaged, he will permanently lose parts of his memory.^[24]

After merging with Ora Serrata, Xilora gains her ability to erase things in sight from existence.^[27]