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:''M-Day redirects here. For the NATO definition, see Military designation of days and hours''

'''Decimation''' is the name of the late 2005 Marvel Comics storyline spinning out of the ''House of M'' limited series, that focuses on the ramifications of the Scarlet Witch's stripping nearly all of the mutant population of their powers, reducing a society of millions to one of scant hundreds. This event, which occurred on November 2 according to X-Men (vol. 2) #191, is known as '"M-Day"' in the Marvel Universe.
"Decimation" began with the self-titled one-shot ''Decimation: House of M: The Day After'', and heralded the relaunch of the Excalibur team in ''New Excalibur'', focusing on Pete Wisdom looking for Captain Britain to head up a new British super team, as well as the relaunch of ''X-Factor'' from the ''MadroX'' miniseries. It also includes several mini-series - ''Son of M'' starring a depowered Quicksilver, ''Generation M'' focusing on other depowered characters, ''Sentinel Squad O
★ N
★ E'' showing the latest iteration of the mutant-hunting Sentinels to be robots piloted by humans, '', and '' - and continues throughout the Marvel Universe, particularly in the ''X-Men''-related titles. One consequence is an upswing of anti-mutant sentiment, especially among certain religious groups, who consider M-Day to be God's judgment against mutant kind.
It has been confirmed by various sources that there are considerably more than 198 mutants remaining - the number has been referred to as "symbolic" rather than actual, and in ''The 198 Files'' is said to be the earliest confirmed number. Numbers for pre-Decimation mutants vary from "over a million" (''House of M'' #8) to 14 million (''New X-Men'' #115, where it is said that the 16 million mutants who died on Genosha was around "over half" of the estimated global mutant population of 30 million mutants), giving a population, if the commonly-used 90% depowered figure is true, of between one hundred thousand and one and a half million. Based on the mathematical comparisons of the oft-repeated 198 and several million, Marvel has recently reevaluated the 90% figure into "Over 99%". This is shown in ''Civil War: Battle Damage Report'' when Iron Man comments on the Post-CW world. The figure may be reevaluated again depending on events taking place in the upcoming Endangered Species and storylines.
Both Hank Pym and Beast note shortly after the event that it is impossible for the energy that certain mutants controlled to simply have vanished, and that it must have been "sent" somewhere. As would later be revealed in ''New Avengers'', most of this energy became a sentient entity called ''"The Collective"'', who has since come into violent conflict with the Avengers. In addition, a portion of the energy revived the body of Gabriel Summers, who had been trapped in space for many years following the defeat of Krakoa.

Contents

Criticism

Notable Depowered Mutants

Confirmed Remaining Mutants

Unconfirmed Mutants

Repowered

Consequences/Repercussions/Lasting Effects

Collected editions

Trade paperbacks

Hardcovers

Bibliography

References

External links

Criticism

According to Marvel Editor-In-Chief, Joe Quesada, the ''Decimation'' event was designed to reduce the number of mutant characters in the Marvel Universe as he felt the number of mutants had gotten out of hand after forty years of publishing.^[1] Most criticisms by fans have been aimed at inconsistencies regarding the roster of mutants who retained their powers after the event. For example, in the ''Generation M'' mini-series, several characters were considered depowered, even though they retained their physical mutations. The ''Civil War Files'' one-shot revealed that the US government's assessment of the number of mutants on Earth may not be accurate, which allowed Marvel to change the number of depowered mutants. Additionally, characters such as Namor and the Great Lakes Avengers, who are described as mutants but not particularly tied to the ''X-Men'' series of books, have not been affected by the event.

Notable Depowered Mutants

''Wizard Magazine'' published a speculative list of supposedly-decimated characters, which Marvel Comics dismissed as including a number of mutants who still have their powers^[2] and also includes non-mutant characters. The list therefore should not be trusted.

Character	Real name	Notes
'Revealed in ''House of M'' #8'
Magneto	Erik Magnus Lehnsherr	Master of Magnetism. Recently repowered by "The Collective" in New Avengers #20, current whereabouts unknown.
Mirage	Danielle Moonstar	Illusionist. Fired from the Xavier Institute by Emma Frost after she was depowered. Training Trauma in the Initiative Program.
Tag	Brian Cruz	Repeller. Died in the end of ''New X-Men'', volume 2 #23 when the bus exploded.
Wind Dancer	Sofia Mantega	Wind manipulator. Left the institute in ''New X-Men'', volume 2 #24. Appeared in ''New Warriors'', volume 4 #1.
'Revealed in ''Decimation: House of M: The Day After'''
Aurelie Sabayon	Aurelie Sabayon	Husk called her parents to inform them that she couldn't breathe under water anymore, however she was never shown.
Blob	Frederick J. Dukes	Attempted suicide after depowerment, as his excess skin was still present.
Callisto	??	Superhuman senses. Leader of the Morlocks. Temporarily repowered due to the Terrigen Mists but to the point where even rain harms her. Reappears in the pages of X-Factor.
Feral	Maria Callasantos	Feline humanoid. Thornn's sister. Killed by Sabertooth's hand in Wolverine Vol. 3, #54.
Hannah Levy	Hannah Levy	Had a prehensile tongue and required diet of insects.
Jubilee	Jubilation Lee	Fireworks discharger. Member of Generation X. Now a member of the New Warriors.
Quicksilver	Pietro Django Maximoff	Has received time-travel powers from the Terrigen Mists, and has internalised the mists' power to mutate.
Thornn	Lucia Callasantos	Feline humanoid. Feral's sister.
'Revealed in ''New X-Men'', volume 2'
Aero	Melody Guthrie	Flyer with energy aura. She is the only known Guthrie to lose their mutant powers. Revealed in #20.
Amber	Amber	Young girl. Revealed in #28. Died following the bus explosion.
DJ	Mark Sheppard	Energy discharger based on music. Revealed in #23. Died following the bus explosion.
Dryad	Callie Betto	Plant manipulator. Revealed in #23. Died during the explosion of the bus.
Hydro	Floyd Carter	Aquatic. Revealed in #20. Accidentally drowned himself when his powers were removed after the M-Day.
Jeffrey Garrett	Jeffrey Garrett	Teleporter who got stuck in ghost form during Xorn's attack on the school in ''New X-Men''#147. Revealed in #21. The M-Day left him totally dead.
Network	Sarah Vale	Machine controller. Revealed in #23. Died during the explosion of the bus.
Preview	Jessica "Jessie" Vale	Precog. Revealed in #20. Depowered yet alive.
Prodigy	David Alleyne	Knowledge Absorption. Revealed in #20. Was asked to stay at the school following the bus explosion.
Rubbermaid	Andrea Margulies	Elastic body. Revealed in #23. Died during the explosion of the bus.
Specter	Dallas Gibson	Shadow form. Revealed in #20. According to Chris Yost and Craig Kyle he is still alive and living with his grandfather.
'Revealed in ''Mutopia X'' #5'
Armena Ortega	Armena Ortega	Could create protective bubble while sleeping.
Bugman	??	Had iridescent yellow eyes, green skin, small antennas on his head.
The Juicers	??	The male had chameleonic skin, while the female could generate luminescent orbs from her hand.
Lara the Illusionist	Lara King	Could generate illusion which affects all five senses.
'Revealed in Generation M'
Chamber	Jonothon Evan Starsmore	Revealed in ''Generation-M'' #1; was on life support in hospital, now repowered from a transfusion of the blood of Apocalypse. New powers still unknown, so may or may not be same as before.
Ned Ralston	Ned Ralston	Revealed in ''Generation-M'' #1; dragon-like form killed when he crashed to the ground after the loss of his powers.
Gary Paterson	Gary Paterson	Revealed in ''Generation-M'' #1; drowned after loss of powers.
Inferno	Tony Romeo	Revealed in ''Generation-M'' #1; combusted after loss of powers.
Jeannie Martin	Jeannie Martin	Revealed in ''Generation-M'' #1; forty inch neck snapped after loss of powers.
Latonya Jefferson	Latonya Jefferson	Revealed in ''Generation-M'' #1; had impenetrable skin, killed in ''Generation-M'' #2 by the Ghoul.
John Mairs	John Mairs	Revealed in ''Generation-M'' #2; third telepathic eye, killed by the Ghoul.
Roach	Hubie Edge	Revealed in ''Generation-M'' #2; transforms into humanoid cockroach, killed by the Ghoul.
Dezmond Harris	Dezmond Harris	Revealed in ''Generation-M'' #2; had leaping ability.
Dynamite	Susan Svenson	Revealed in ''Generation-M'' #2; generates light from hands, killed by the Ghoul.
Stacy X	Miranda Leevald	Revealed in ''Generation-M'' #2. Is living on the streets as a prostitute again.
Tim Hacker	Tim Hacker	Revealed in ''Generation-M'' #2; blue skin and six fingers on each hand, killed by the Ghoul.
Former Order of Mutants	Kevin E, Bertram K, Michael, Ralph and Joey V	Revealed in ''Generation M'' #3. Association of former mutants, although a member, Elaine is only pretending to have been a mutant.
Nelson Cragg	Nelson Cragg	Revealed in ''Generation-M'' #3; one of Ravencroft Asylum’s inmates.
Violet Sanchez	Violet Sanchez	Revealed in ''Generation-M'' #3; looks like a Shar Pei, killed by the Ghoul.
Sarah Pursher	Sarah Pursher	Revealed in ''Generation-M'' #4; flight, committed suicide.
Jim Prindle	Jim Prindle	Revealed in ''Generation-M'' #4; transforms matter into anything, Ex-student at Xavier's.
Unnamed Mutants	???	Revealed in ''Generation-M'' #2-4; most of them were killed by the Ghoul.
'Revealed in ''Son of M'''
Hub	??	Teleporter. Member of Unus' Gang and Chimere's ally. Revealed in ''Son of M'' #5. Temporarily repowered by the Terrigen Mists with erratic control.
Hack	??	Telepath. Member of Unus' Gang and Chimere's ally. Revealed in ''Son of M'' #5. Temporarily repowered by the Terrigen Mists.
Purge	??	Super-strong. Chimere's ally. Revealed in ''Son of M'' #5. Temporarily repowered by the Terrigen Mists with erratic control.
Shola Inkosi	Shola Inkosi	Telekinetic. Helped Shadowcat during Mekanix. Ally of Professor X on Genosha. Revealed in ''Son of M'' #5. Temporarily repowered by the Terrigen Mists.
Wicked	??	Necromancer. Ally of Professor X on Genosha. Revealed in ''Son of M'' #5. Temporarily repowered by the Terrigen Mists with erratic control.
Freakshow	??	Shapeshifter. Member of the Genoshan Excalibur. Ally of Professor X on Genosha. Revealed in ''Son of M'' #5. Temporarily repowered by the Terrigen Mists.
'Revealed in ''New Avengers'' #18-20'
Agent Zero	Christoph David Nord	Weapon X Agent
Angel Dust	Christine	Morlock
Artie Maddicks	Arthur Maddicks	Member of Generation X and X-Factor.
Arturo Falcone	Arturo Falcone	Resided in Mutant Town.
Black Tom Cassidy	Thomas Samuel Eamon Cassidy	Banshee's cousin. May have only lost his secondary mutation which transformed him into a plant-like creature.
Blind Faith	Alexis Garnoff	Russian Exiles.
Boost	??	Morlock.
Bora	??	Avant Guard's.
Brass	Sean Watanabe	Telepath.
Caiman	??	Ally of Unus.
Conquistador	Miguel Provenza
El Aguila	Alejandro Montoya
Fatale	"Pamela Greenwood"	Lackey of Dark Beast.
Flambè	??	Member of the Hell's Belles.
Forearm	Jorge Lukas	Student at Xavier's. (Not to be confused with the Mutant Liberation Front member.)
Gloom	??	Ex-student at Xavier's.
Golden Child	Paul Patterson	Appeared in the Marvel Team-Up arc "Golden Child"
Harpoon	Kodiak Noatak	Marauder.
Hazard	Carter Alexander Ryking
Jon Spectre	Jon Spectre	Six Pack member.
Key	??	Cable ally.
King Bedlam	Christopher Terrence Aaronson	Leader of New Hellions.
Kiwi Black	??	Half-brother of Nightcrawler and Abyss.
Lightning Rod	??	Ally of Unus.
Longneck	Jonah Van Helsking	Ex-student at Xavier's.
Mary Zero	Mary	Sidekick of Agent X.
Mist Mistress	??	Member of the Resistants
Monsoon	Aloba Dastoor	Brother of Haven.
Murmur	Arlette Truffaut	Member of Alpha Flight
Murmur II	??	Member of Emplate's Hellions.
Nightwind	??	Rising Sons member.
Overrider	Richard Rennsalaer
Paralyzer	Randall Darby	Member of the Resistants. Also known as Shocker II.
Phantazia	Eileen Harsaw	Brotherhood of Evil Mutants member.
Postman	David	Morlock.
Quill	??	Resistants member (not to be confused with the Xavier Institute student Quill).
Radian	??	Ex-student at Xavier's and member of the Omega Gang.
Radius	Jared Corbo	Brother of Flex. Member of Alpha Flight.
Randall Shire	Randall Shire	???
Reaper	Pantu Hurageb	Mutant Liberation Front member.
Redneck	??	Ex-student at Xavier's and member of the Omega Gang.
Scanner	Sarah Ryall	Acolyte of Magneto.
Shatter	??	Morlock.
Skywalker	??	Ex-student at Xavier's.
Slick	??	Ex-student at Xavier's. Possibly died due to Stryker's attack.
Spike	??	Student at Xavier's.
Spoilsport	??	Rising Sons member.
Strobe	??	Mutant Liberation Front member.
Sunfire	Shiro Yashida	Listed but not pictured.
Tantra	Reuben	Ex-student at Xavier's.
Tarot	Marie-Ange Colbert	Member of the Hellions, latterly undead.
Tattoo	??	Ex-student at Xavier's and member of the Omega Gang.
Tether	??	Morlock.
Tremolo	??	Member of the Hell's Belles.
Vague	??	Member of the Hell's Belles.
Wild Child	Kyle Gibney	Weapon X and X-Factor member.
Wildside	Richard Gill	Mutant Liberation Front member.
Windshear	Colin Ashworth Hume	Alpha Flight member.
Wiz Kid	Takeshi "Taki" Matsuya	Member of the X-Terminators.
Wraith	Hector Mendoza	Member of the X-Men. Had transparent skin.
Shen Xorn	Shen Xorn	Kuan-Yin's twin brother. Member of the X-Men.
Zach	Zach	Ex-student at Xavier's.
'Revealed in various other issues'
Abyss	Nils Styger	Nightcrawler's half-brother. Revealed in the ''Official Handbook of the Marvel Universe A to Z'' #1.
Alexander Lexington	Alexander Lexington	Member of Sentinel Squad O ★ N ★ E. Revealed in ''X-Men: The 198 Files'' (NB: The ''Sentinel Squad O ★ N ★ E miniseries takes place pre-M-Day, and shows how the squad was formed).
Angel Salvadore	Angel Salvadore	Revealed in ''Exiles'' #72. Ex-student at Xavier's. Human/Bug mutation
Antonio	Antonio	Revealed in ''X-Men: The 198'' #1. Lover of Magma, fire powers. Died in a volcano at the moment of the Decimation.
Beak	Barnell Bohusk	Revealed in ''Exiles'' #72. Ex-student at Xavier's. Bird mutation
Five of the Bohusk/Salvatore Children	Kara, Axel and three unnamed kids	Revealed in ''Exiles'' #72 that 5 of the 6 children are depowered. Tito Bohusk is the only one who has retained his mutated appearance.
Bloodlust	Beatta Dubiel	Revealed in ''Official Handbook A-Z'' #4. Member of the Femme Fatales.
Doctor Leery	Leery	Revealed in ''X-Factor III'' #5. Slain by Rictor.
Elijah Cross	Elijah Cross	Revealed in ''X-Factor III'' #17. Is the leader of the X-Cell.
Gazer	??	Revealed in ''X-Men'' #178. Has been turned into a Horseman of Apocalypse in #182.
Marrow	Sarah	Revealed in ''X-Factor III'' #18; Shown as a member of the group of former mutants calling themselves "X-Cell", who believe the government is behind the massive loss of mutant powers.
Mesmero	Vincent	Revealed in ''X-Men Unlimited'', volume 2 #13. Hypnotist
Mister Marvel	Mark Hawkins	Revealed in ''X-Men Unlimited'', volume 2 #13. Had the power to have a wondeful super-hero life.
Pasco	Pasco	Mercenary and partner of Sabretooth. Introduced in ''X-Men #191''. Powers: Forcefield generation.
Polaris	Lorna Dane	Revealed in ''X-Men'', volume 2 #177. Magnetic Abilities. Repowered by Apocalypse as Pestilence, one of his Horsemen.
Professor X	Charles Francis Xavier	Revealed in X-Men: Deadly Genesis #5. Spinal injury repaired in the process. Recently repowered by The M'Kraan Crystal.
Quiet Bill	??	Revealed in X-Men #200. Homeless man who first appeared in Gambit Vol. 3 #10. Can open portals to view alternate realities and timelines.
Qwerty	??	Revealed in Uncanny X-Men #490. A Morlock able to see the future.
Razorback	Buford T. Hollis	Revealed in All-New Official Handbook Of The Marvel Universe A-Z #9.
Rictor	Julio Esteban Richter	Revealed in ''X-Factor'', volume 3 #1. Seismic Waves.
Scarlet Knight	Colin Hardy	Revealed in ''New Excalibur'' #6. All his family is depowered too.
Unus the Untouchable	Angelo Unuscione	Revealed in ''Marvel Legacy: The 1960s'' under the Factor Three entry. Was in Genosha when Pietro arrived with the Terrigen Mists. Killed by his new forcefield.

: Those mutants remain active while depowered or have not been confirmed repowered
: Those mutants got their powers back
: Those mutants were remutated
: Those depowered mutants are dead
: Those mutants are dead but were repowered at the time
: Those mutants are dead but were remutated at the time

'Notes':

★ Domina, Electric Eve, Revenant, Toad-In-Waiting are presumed depowered following Wizard's list but haven't been confirmed on panel.

★ Sunfire, while depowered long before M-Day because of Rogue was listed among the energies in the Collective. Seeing that Rogue still has his powers how this is possible remains unknown.

★ It is not clear which powers Black Tom Cassidy has lost. While he has surely lost his tree form/plant control power, he may have only been mimicking his energy power against New Excalibur as it was said he used Black Air technology.

★ According to the ''New Official Handbook of the Marvel Universe A-Z'' #12 Wild Child may have retained some of his powers since he gained some of them through genetic manipulation during his Alpha Flight and Weapon X days.

★ The only students at Xavier's who are still powered were shown in ''New X-Men'' vol. 2, #23. That means that despite not being shown on panel Kidogo, Flubber and Rain Boy are depowered. Any other student but the ones listed either here or in the powered section either died prior to M-Day or are depowered. The ones who died on the bus weren't shown before (Amber for instance) except for DJ, Dryad, Network, Rubbermaid, Tag.

★ Many mutants still remain active although they are depowered, they include the New Warriors Beak, Jubilee and Wind Dancer, the X-Cell as well as Brass and El Aguila as reported in ''Civil War: Battle Damage Report''

★ It has not been revealed whether latent mutants, such as Charlotte Jones, have also lost their X-gene after Decimation.

Confirmed Remaining Mutants

While it has been stated that there are at least 198 remaining mutants, according to Henry Peter Gyrich, there are actually "around 300"; the 198 number is merely the number of mutants the US government has catalogued, with a 199th mutant being off the record.^[3] However, only 184 mutants have in fact been confirmed within the actual story material; and 21 of said mutants have died post-Decimation. The confirmed remaining mutants are as follows:

★ Alchemy[4] ★ Anole[5] ★ Apocalypse[6] ★ Archangel[7] ★ Arclight[8] ★ Armor ★ Asylum[9] ★ Aurora[10] ★ Avalanche[4] ★ Banshee[12] (deceased) ★ Beast[13] ★ Beautiful Dreamer[14] ★ Big Bertha[15] ★ Bishop ★ Black Box[16] (deceased) ★ Blindfold[17] ★ Bling![18] ★ Bliss[19] ★ Blockbuster[20] ★ Bohusk, Tito[21] ★ Braddock, Jamie[22] (deceased) ★ Bruiser[23] ★ Cable[24] (deceased) ★ Caliban[25] ★ Calthrop, Godfrey ★ Cannonball[26] ★ Catiana[4] ★ Cheney, Lila[4] ★ Cloak[29] ★ Collective Man (Chang)[4] ★ Collective Man (Han)[4] ★ Collective Man (Ho)[4] ★ Collective Man (Lin)[4] ★ Collective Man (Sun)[4] ★ Colossus ★ Cyber[35] ★ Cyclops ★ Dagger[29] ★ Daken[37] ★ Dark Beast[4] ★ Dark Mother[39] (deceased) ★ Darwin[40] ★ Dazzler[41] ★ Dee, Johnny ★ Diamond Lil ★ Domino[42] ★ Doorman ★ Dragoness[4] ★ Dust[44] ★ Elixir ★ Empath[45] ★ Erg ★ Ernst ★ Exodus[46] ★ Fever Pitch[47] ★ Firestar[48] ★ Flatman ★ Forge[49] ★ Frenzy ★ Frost, Emma ★ Gambit ★ Gargouille

★ Gateway[4] (deceased) ★ Gentle ★ Ghoul[51] (deceased) ★ Glob Herman[4] ★ Guardian[53] ★ Havok ★ Hellion ★ Horrocks, Ned (deceased) ★ Husk ★ Icarus (deceased) ★ Iceman ★ Indra ★ Jazz (deceased) ★ Jeffries, Madison[4] ★ Justice ★ Karma ★ Kid Omega[55] ★ Kravinoff, Alyosha[56] ★ Kylun[4] ★ Lady Mastermind[58] ★ Landru[59] (deceased) ★ Leech ★ Lifeguard[4] ★ Lightbright[61] ★ Litterbug[4] ★ Loa ★ M[63] ★ Magik[5] ★ Magma ★ Malice[20] ★ Mammomax (deceased) ★ Mandrill[66] ★ Marvel Girl ★ Masque[19] ★ Match ★ Mentallo[4] ★ Mercury ★ Microbe[69] (deceased) ★ Micromax[70] ★ Mindblast[71] ★ Mister Immortal ★ Mister M (deceased/evolved) ★ Multiple Man ★ Mutant Zero[3] ★ Mystique[73] ★ Namor the Sub-Mariner[74] ★ Nekra[75] ★ Neophyte ★ Nightcrawler ★ Nixon, Kiden[4] ★ No-Girl[77] ★ Nocturne ★ Northstar ★ Omega Red[78] ★ Onyxx ★ Outlaw ★ Peepers ★ Persuasion[4] ★ Pixie ★ Prism[80] ★ Projector

★ Psylocke ★ Puck (deceased) ★ Pulse ★ Quill (deceased) ★ Random ★ Rasputin, Mikhail[81] ★ Rhapsody[4] ★ Richards, Franklin[83] ★ Ricochet[75] ★ Riptide[20] ★ Rockslide ★ Rogue ★ Sabra ★ Sabretooth (deceased) ★ Sack ★ Sage ★ Scalphunter ★ Scrambler[4] ★ Selene[87] ★ Senyaka[88] ★ Shadowcat ★ Shadow King[89] (deceased) ★ Shatterstar ★ Shaw, Sebastian[4] ★ Shaw, Shinobi[4] ★ Silver Samurai[92] ★ Siryn[63] ★ Skein[4] ★ Skids ★ Slade, Frederick[95] ★ Smerdyakov, Gregor[96] ★ Smith, Tabitha[97] ★ Squirrel Girl ★ Storm[98] ★ Strong Guy ★ Sunspot ★ Surge ★ Synge, Amina ★ Tempo ★ Three-in-One (Celeste) ★ Three-in-One (Mindee) ★ Three-in-One (Phoebe) ★ Thunderbird[4] ★ Toad ★ Trance ★ Travis, Lorelei ★ Tryp, Damian[100] ★ Unuscione[39] ★ Ursa Major[4] ★ Vanguard[4] ★ Voght, Amelia[4] ★ Vulcan ★ Wallflower (deceased) ★ Warpath[105] ★ Whedon, Evangeline ★ Whirlwind[106] ★ Wisdom, Pete ★ Wither ★ Wolf Cub ★ Wolfsbane ★ Wolverine ★ X-23

'Notes':

★ Despite sometimes being called so, Deadpool, Juggernaut, Lady Deathstrike, Mastermind Excello, Mister Sinister, and any member of the Folding Circle or the original members of Psionex are not mutants.

★ The Owl may or may not be a mutant, as his powers supposedly came from a serum he ingested, and there have been both mutants like the Beast, and mutates like the Lizard, who have similar origins for their abilities. The exact nature of his powers has yet to be confirmed, though it should be noted that in the Age of Apocalypse, he possesses the exact same powerset as an assassin for Apocalypse, in a reality where genetically human mutates were extremely rare.

★ Asp actually fears the Superhuman Registration Act (which Mr Fantastic, at the time, prevented to pass), not the Mutant Registration Act in the ''Acts of Vengeance'' crossover, the exact nature of her power is still unknown and has yet to be revealed .

★ Cloak & Dagger are listed as science/magic-based mutates in ''Civil War: Battle Damage Report'' but have otherwise long been established in the main Marvel continuity as latent mutants whose powers were activated by drugs developed by the demon D'Spayre. Their mutant nature was also confirmed in the Age of Apocalypse limited series, where they were part of Sinister's Six. Similarly Namor the Sub-Mariner was said to be the first official mutant in House of M. Since both reality diverged after the characters' respective births this confirms their status as mutants in the main Marvel continuity as well.

★ The Black Cat, Mimic, and the Purple Man have all been called both mutants and mutates. Mimic, who hasn't shown any power since M-Day but was a Thunderbolt detainee, which suggest he had some, was claimed to be a latent mutant whose powers were activated by accidental exposure to experimental gases as a young boy in his father's lab by former head X-writer Scott Lobdell. The still powered Purple Man gained his after a similar accident since he introduced himself as a mutant when he met X-Man (which he had no real reason to lie about and which was not disputed by Nate Grey when he read his memories), his daughter Purple Girl, who inherited the exact same powers is a confirmed genetic mutant, though numerous mutates have given powers to their children. Black Cat had her powers triggered through mechanical means but is unclear whether or not it was a latent mutation, her powers were stripped long before M-Day in exchange for catlike abilities anyway.

★ Franklin Richards and Cable were depowered before M-Day but remain genetic mutants. Cable has since found a way to mimic his powers through technological means.

★ Living Monolith is actually a human whose DNA was artificially spliced with the mutant genomes of Havok by Apocalypse's then servant Mister Sinister (who also added some mutant DNA to his own at times). In the same way Andreas Strucker had his powers added ''in vitro''. As such they are all mutates.

★ Cassandra Nova and Ultra Girl do not belong to the human species and as such are not "Homo Superior" mutants. Ultra Girl is a Kree mutant while Cassandra, as Professor Xavier's dark twin belongs to the Mummudrai species while in the Here Comes Tomorrow storyline, it was implied she had been reeducated and transformed into Ernst, which despite later retcons, has not yet been conclusively disproven, so Ernst can still be considered a mutant for now.

★ The original Cyber's body died long ago and only his spirit now exists. He is classified as a mutant now because he lives in the body of the mutant Milo Gunderson in the same way as Shatterstar, who inhabits the body of a mutant, Benjamin Russell (they are physically identical though the exact nature of their connection -whether they be twins, clones, or split-personalities-has yet to be revealed) was listed as one of them in ''X-Men: The 198 Files''.

★ The ''Civil War: Battle Damage Report'' made no mention of if any mutant referenced remained powered, although several were listed as potential recruits for The Initiative. It is clear with Moonstar's inclusion in the Initiative that being powered is not the sole factor in being part of the program. Plus, some mutants, such as El Aguila and Brass, are well-trained enough or sufficiently armed to fight crime without mutant powers.

★ The Gibbon, Doug & Jerry, Irving, and the Sugar Man have been shown as retaining their physical mutation, but showed no sign of their former mutant abilities, likewise Bandit, Scarlet Witch, Timeslip, and the Witness appeared on panel but showed no powers. As such, their status is unknown.

★ Harpoon was confirmed depowered in New Avengers #18, but has since reappeared as a member of the Marauders. It is unknown if he has since been repowered, cloned, or if he's simply fighting powerless with a weapon. The same question is raised for Black Tom Cassidy who may have only been mimicking his energy power against New Excalibur as it was said he used Black Air technology.

★ Despite heavy fan speculation Debrii, Speed, Typhoid Mary, and Wiccan have not been confirmed as mutants as of yet.

★ It is unknown what exactly Hollow is. Originally explained a prisoner of Emplate, the creature was retconned into being M II imprisoned by Emplate who attacked her and created the Penance shell around her. M II was freed from the Penance shell, and the St. Croix twins went inside it, becoming Penance, in order to make up the wrong that was done to their sister. When they later were freed from the Penance shell, it was discovered that the shell was autonomous. It remains to be seen whether Hollow is a living creature, some mystic device, a magical creation, etc.

★ Madame Web is a human who was able to reach her human psychic potential. She has never been called a mutant in the comics, nor has there ever been any indication that she possesses an X-Gene. Recent Handbooks have referred to her as a mutant, making them the only such contradiction, but nothing in-continuity has yet to indicate her mutant status.

Unconfirmed Mutants

Mutants whose official mutant status has not been confirmed since M-Day. Current Marvel policy is to suspect the following mutants powered until official confirmation, especially the ones who were listed in an ''Official Handbook of the Marvel Universe A-Z'' and not stated as depowered.

Character	Real name	Notes
Aardwolf	Chon Li	Former employer of the Folding Circle.
Anais	Anais	Worshipper of Apocalypse.
Archer	Judd Black	Last seen since X-Factor Vol. 1
Astra	Astra	Last seen in a flashback in The Twelve storyline. Possibly killed by Apocalypse
Azazel	Azazel	Father of Nightcrawler.
Bandit	Donyell Taylor	Last seen in New Warriors, with legs amputated. No confirmation of powers either lost or kept.
Barnacle	Mortimer Everett	Former member of the Acolytes.
Bedlam	Jesse Aaronson	Unknown status
Bella Donna	Bella Donna Boudreaux	Last seen in a relationship with Bandit and still leader of the Unified Guilds of New Orleans.
Blaquesmith	??	Last seen as a member of Cable's Underground in Weapon X Vol. 2.
Blindspot	??	Last seen in Rogue Vol. 3.
Astrid Bloom	Astrid Bloom	Last seen in Emma Frost series. Former friend of Emma Frost.
Elias Bogan	Elias Bogan	Last seen in X-Treme X-Men. Former member of the Hellfire Club.
Briquette	??	Member of Hell's Belles.
Burner	Byron Calley	Former member of the Resistants.
Chance	??	Former member of the Fallen Angels.
Chimera	??	Wolverine's enemy.
Courier	Jacob Gavin Jr., "Jacklynn"	Ally of Gambit.
Crimson Commando	Frank Bohannon	Last seen as a bodyguard of Magneto's in the House of M.
Doppleganger	Wolfgang Helmut Heinreich	X-Factor's enemy.
Dragonwing	??	Last seen in Generation X #54. Was leader of the Rising Sons.
Double Helix	??	Member of the London Morlocks.
Electric Eve	Eve	Last seen in Morlocks Vol 1.
Emplate	Marius St. Croix	Last seen in Generation X.
Ent	??	Last seen in Web of Spider-Man #77
Ever	??	Former Morlock and member of the Brotherhood of Mutants.
Famine	Autumn Rolfson	Member of the original Horsemen of Apocalypse.
Feedback	Albert Louis	Beta Flight team member.
Fixx	??	Last seen in X-Factor Vol.1
Flex	Adrian Corbo	ex-Alpha Flight member, younger half-brother of Radius
Fontanelle	Gloria Dayne	Ally of Gambit
Cordelia Frost	Cordelia Frost	Youngest sister of Emma Frost.
Gaia	??	Last seen in Generation X. From another dimension; more than likely immune from M-Day.
Sean Garrison	Sean Garrison	Father of Wallflower
Carter Ghazikhanian	Carter Ghazikhanian	Last seen leaving the X-Mansion after Exodus' Brotherhood of Mutants attacked the school.
Ghost Girl	Lilli	Former member of Alpha Flight.
Mikula Golubev	Mikula Golubev	Member of Bogatyri.
Gorgeous George	George Blair	Member of the Nasty Boys. Last seen in ''X-Factor'' Vol.1
Jebediah Guthrie	Jebediah Guthrie	Brother of Cannonball. Last seen in Uncanny X-Men.
Hairbag	Michael Suggs	Member of the Nasty Boys.
Harness	Erika Benson	Agent of Alliance of Evil and A.I.M..
Hawkshaw	??	Member of the Press Gang.
Holly	Holly	X-Corporation's secretary.
Inza	Inza	Peruvian mutant.
Shirow Ishihara	Shirow Ishihara	Ally of Gambit.
Jack-in-the-Box	Jack	Last seen in Weapon X.
Jade Dragon	Dei Guan	Ex-member of the Alpha Flight and Mutant Liberation Front.
Kamal	Kamal el Alaqui	Former member of the Acolytes.
Katu	Katu	Former member of the Acolytes.
Benazir Kaur	Benazir Kaur	Ex-member of the Hellfire Club
Benedict Kine	Benedict Kine	Ex-member of the Hellfire Club
Kleinstocks	Harlan and Sven	Former Acolytes of Magneto.
Lacuna	Woodstock	Last seen in X-Statix.
Mad Jim Jaspers	James Jaspers	Former member of the Crazy Gang and Hellfire Club.
Manikin	Whitman Knapp	Alpha Flight & Beta Flight member.
Krista Marwan	Krista Marwan	Ally of Genetix.
Mastermind	Martinique Jason	Last seen at the Paris X-Corps.
Meld	Jeremiah Muldoon	Sentinel Squad One faked his death prior to M-Day, where he now resides in Ecuador.
Mindmeld	??	Bodyguard of Shinobi Shaw
Mister X	??	Enemy of Wolverine's
Mondo	??	Last seen in Generation X.
Mountjoy	??	Ex-Hellfire Club member
M-Twins	Claudette and Nicole St. Croix	Younger twin sisters of M and Emplate
Nanny	??	Last seen in Generation X.
Nuklo	Robert Frank Jr.	Son of Whizzer and Miss America
O-Force	Obituary, Ocean, Ocelot, Oink, Ooze, Optoman, Oracle, Orbit, Orchid, Orifice, Overkill, Ozone	All members of the O-Force as seen in X-Statix.
Omerta	Paulie Provenzano	Former member of the X-Men.
Orator	Victor Ludwig	Member of the Acolytes.
Orphan-Maker	Peter	Last seen in Generation X
Paradigm	??	Last seen in X-Force Vol.1
Pathway	Laura Dean	Beta Flight member
Reeva Payge	Reeva Page	Ex-Hellfire Club member.
Peace Monger	Dr. Cobbleskill	Rights activist. Enemy of American Eagle.
Pipeline	Cormick Grimshaw	Member of the Press Gang and Genoshan Magistrates.
Primal	Adam Berman	Last seen in Generation X.
Promise	Gene Bitner, Tad Carter, Craig Farnsworth, Simon Lestron, Lucy Robinson, Ernest Scope, Gracie Smith	Group of telepaths.
Puff Adder	Gordon Fraley	Member of the Serpent Society.
Punchout	??	Member of the Press Gang.
Rakkus	David Anthony Rice	Former member of the Acolytes.
Ramrod	Patrick Mahony	Last seen on X-Factor Vol 1.
Red Lotus	Paul Hark	Last seen attempting to destroy the mutant slave ring of the Hellfire Club.
Revelation	??	Member of the Morlocks.
Cecilia Reyes	Dr. Cecilia Reyes	Last seen at the Neverland mutant concentration camp in Weapon X Vol 3.
Ridge	??	Member of Genetix.
Ruckus	Clement Wilson	Last seen as an aid for Mystique.
Rust	??	Member of the Resistants.
Sabre	??	Member of Mystique's Brotherhood of Mutants.
Scarlet Witch	Wanda Maximoff	The catalyst of M-Day, Wanda has not been confirmed in retaining the X-gene.
Scribe	??	Member of the Hellfire Club.
Shepard	Francis Leighton	Former member of X-Corporation and agent of Quiet Man.
Shift	Clifton Joseph	Member of Genetix.
Shortpack	??	Last seen in Mystique Vol.1
Shrew	Marilyn Maycroft	Member of Hell's Belles.
Sirocco	??	Member of Desert Sword
Sketch	??	Last seen in Uncanny X-Men #383
Slab	Christopher Anderson	Member of the Nasty Boys.
Slither	Aaron Salomon	Member of the Resistants.
Soteira	Soteira	Member of the Morlocks.
Spoor	Andrew Hamish Graves	Former member of the Acolytes.
Ms. Steed	Steed	Ex-Hellfire Club member
Static	Giana Carina Esperanza	Former member of the Acolytes.
Stinger	Wendy	Member of the Alliance of Evil.
Stinger II	Blodween Reese	Member of Genetix.
Stitch	Jodi	Ex-Alpha Flight member
Switch	Devon Alomar	Last seen in X-Force Vol.1
Threnody	Melody Jacobs	Lover of X-Man.
Thumbelina	Kristina Anderson	Ex-member of the Mutant Liberation Front
Timeshadow	??	Member of the Alliance of Evil.
Vanisher	Telford Porter	Former member of the Brotherhood of Mutants.
Vesper	Raani Jatwinder	Member of Genetix.
Vincente	Vincente	Former member of the Emplate's Hellions.
Vindaloo	Venkat Katregadda	Former member of the Acolytes.
War	Abraham Kieros	Member of the original Horsemen of Apocalypse.
Wyre	??	Former member of the Alpha Flight.

Repowered

Character	Real name	Notes
Abyss	Nils Styger	X-Cell member, repowered by Quicksilver in the pages of X-Factor
Butterfly	Layla Miller	Claims to have lost her original mutant powers (having horns and breathing fire) on M-Day but received omniscience by an unrevealed source.[107] (It should be noted she was possibly lying about the former powers)
Chamber	Jonothon Evan Starsmore	Repowered by Frederick Slade under Ozymandias' orders in ''New Excalibur'' #9. He is now a possible Omega-level mutant and resembles Apocalypse.
Elijah Cross	Elijah Cross	X-Cell leader, repowered by Quicksilver in ''X-Factor (3rd series)'' #20. Deceased after exploding due to his repowerment.
Fatale		X-Cell member, repowered by Quicksilver in ''X-Factor (3rd series)'' #20. Inside Abyss's brimstone dimension.
Gazer		Revealed to have been turned into War by Apocalypse in ''X-Men'' #182.
Magneto	Erik Magnus Lensherr	Repowered by the Collective in ''New Avengers'' #20. Presumed dead, though no trace of his body was found.
Polaris	Lorna Dane	Became Pestilence in ''X-Men'' #181 and was revealed to have her original powers back in #187. Apocalypse hardwired alien technology into Lorna's nervous system to replicate her magnetic abilities.
Professor X	Charles Francis Xavier	Telepathy recently restored by exposure to the M'Kraan Crystal in ''Uncanny X-Men #486''.
Quicksilver	Pietro Django Maximoff	Used the Terrigen Mists to regain his powers.[108] His powers have evolved to timetravel, giving the appearance of superspeed and has demonstrated the ability to reempower depowered mutants, although the effects appear to be temporary.
Reaper	Pantu Hurageb	Repowered by Quicksilver in ''Son of M'' #1, now a member of the X-Cell. Inside Abyss's brimstone dimension.
Rictor	Julio Esteban "Ric" Richter	Repowered by Quicksilver in ''X-Factor (3rd series)'' #20, serving as a catalyser for his repowering powers which seems to be exhausting.
Sunfire	Shiro Yashida	Depowered by Rogue long before M-Day, yet his signature was found within the Collective. Turned into Famine by Apocalypse and now a member of the Marauders
Wild Child	Kyle Gibney	Appeared repowered in Wolverine (3rd series) #53. Joe Quesada has implied it might have something to do with Weapon X. [109]

'Notes':

★ Callisto, Freakshow, Hub, Hack, Purge, Shola Inkosi, Wicked andUnus have all been repowered by the Terrigen Mists in the ''Son of M'' limited series but the effects were temporary. Unus was suffocated by his own powers while Callisto was in a coma. She has since recovered.

★ Iceman is not repowered, since he never lost his powers in the first place. After the events of M-Day he developed a mental block, which suppressed his secondary mutation and blocked his powers.

★ Archangel only pretended to be depowered as seen in ''Generation M'' #4 and #5.

★ It is unclear as to if Layla Miller had powers before M-day, or if she was simply lying. To further complicate matters, she was said to not be a mutant in ''X-Factor (3rd series)'' #20.

★ Feral and Thornn weren't actually repowered, they merely had their physical mutation restored. As shown in ''Wolverine'' #55.

Consequences/Repercussions/Lasting Effects

★ The Xavier Institute is no longer just a school for mutants, but a haven for all remaining mutants. This changed after the Civil War as they were all set free by the US president.

★ Sentinel Squad O
★ N
★ E: In the aftermath of the House of M, resulting in the depowering of 90% of the world's mutant population, the Office of National Emergency (aka O
★ N
★ E), a splinter from the Department of Homeland Security, had Sentinels instituted at the X-Mansion to protect the mutants in case any enemies used this low point as an opportunity to attack them at their weakest, and also to stop the mutants in the event of a revolution.

★ Children of the Vault: The reduction of mutants also accidentally awakens The Children of the Vault. (In the pages of ''X-Men'')

★ Exodus reforms the Acolytes with Frenzy, Random, Tempo and Carmella Unuscione

★ Apocalypse: Due to the events of M-Day, Apocalypse was revived by Cable to force the remaining mutants to band together to expel the threat, as a way to bring the mutant community together after M-Day. (In the pages of ''X-Men'' and ''Cable and Deadpool'')
::He turned Sunfire, Gambit, Polaris and Gazer into his Horsemen. Gazer was killed by Ozymandias, however, resulting in Polaris and Sunfire regaining powers and Gambit being turned black and having a lethal gas power. The latter 2 then joined Sinister's forces as did Exodus's forces after discoveing that no new mutant had appeared since M-Day.

★ The flying energy: It reawakened Vulcan who was a member of a secret team of X-Men sent to help Scott's team on Krakoa and left to die there. He returned from his space exile to begin a vendetta against Xavier and then the Shi'ar empire (In the pages of ''Deadly Genesis'' and ''Uncanny X-Men'').
::The rest of the energy ended up forming The Collective by merging with a mutant postal worker, Michael Pointer who then apparently killed the then members of Alpha Flight and went on to Genosha, repowering Magneto, who recognizes the intelligence controlling it as "Xorn who explains his action by the fact that the mutants needed him as a leader. The New Avengers arrive and blast the Collective into the sun. Magneto is then taken away in an helicopter which blows up right after it takes off (In the pages of ''New Avengers'')

★ William Stryker: Deeming the sudden massive reduction in number of the mutant population a sign of God, saying "He made the first step and now we have to take the next", basically rallying for genocide on TV. (In the pages of ''New X-Men'')

★ Onslaught: ''Onslaught Reborn'' will see Onslaught return; as the mutant energies of both Professor X and Magneto meet once again, they reform the monster. (This takes place before the ''Civil War'' event).

★ Both Professor X and Reaper have been healed by the event. The former can now walk again and the latter is no longer brain dead.

★ After the Civil War, X-Factor Investigations will be dealing with a siege in Mutant Town when a group of depowered mutants, calling themselves X-Cell become terrorists thinking the Government is responsible for their depowerment. The members are Elijah Cross, Callisto, Blob, Marrow, Fatale, Reaper, and Abyss.

★ Wolverine discovers a half-way home for depowered mutants who are fearing for their lives. Both Jubilee and Maverick are there.

★ Dr. Kavita Rao's work is ruined, as there's no more need for a mutant cure and all of her mutant DNA samples were turned to dust on M-Day.

★ As a side effect, no new mutants are born. This leads into the storyline, and later, the .

★ Several de-powered mutants seek to return to heroing, and are recruited into the post-Civil War New Warriors.

Collected editions

Trade paperbacks

''Decimation: X-Men - The Day After''	(ISBN 0-7851-1984-1)	collects ''Decimation: House of M - The Day After'' and ''X-Men'' #177-181.
''Decimation: Generation M''	(ISBN 0-7851-1958-2)	collects ''Generation M'' #1-5.
''Decimation: Son of M''	(ISBN 0-7851-1970-1)	collects ''Son of M'' #1-6.
''Decimation: Sentinel Squad O ★ N ★ E''	(ISBN 0-7851-1997-3)	collects ''Sentinel Squad O ★ N ★ E'' #1-5.
''Decimation: X-Men - 198''	(ISBN 0-7851-1994-9)	collects ''X-Men: The 198'' #1-5 and ''X-Men: The 198 Files (one-shot)''.

Hardcovers

''X-Men: Deadly Genesis''	(ISBN 0-7851-1984-1)	collects ''X-Men: Deadly Genesis'' #1-6.
''Wolverine: Origins & Endings''	(ISBN 0-7851-1977-9)	collects ''Wolverine'' #36-40.

Bibliography

★ ''Decimation: House of M - The Day After'' (one-shot)

★ ''Generation M'' #1-5

★ ''Mutopia X'' #5

★ ''New Excalibur'' #1-3

★ '' #20-23

★ ''Sentinel Squad O
★ N
★ E'' #1-5

★ ''Son of M'' #1-6

★ ''Uncanny X-Men'' #466-468

★ ''Wolverine'' #36-40

★ ''X-Factor'' #1-4

★ ''X-Men'' #177-179

★ '' #1-6

★ '' #1-5

★ '' (one-shot)

★ ''X-Men Unlimited'' #13

★ ''New Avengers'' #16-20

References

1. http://www.newsarama.com/JoeFridays/JoeFridays21.html
2. http://www.comixfan.com/xfan/forums/showpost.php?p=1152661&postcount=576
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