Decimation (comics) - Consequences, Repercussions

Consequences, Repercussions

• 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. The Squad was later destroyed in the events of Messiah Complex.
• 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 two then joined Sinister's forces as did Exodus's forces after discovering 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 saw 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. Although Professor Xavier is one of the depowered, his telepathy is later restored and enhanced to a more powerful level when Vulcan throws him into the M'Kraan Crystal.
• 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 "Endangered Species" storyline, and later, the "Messiah Complex", that deals with the birth of Hope Summers, the only new mutant born since the Decimation, Messiah War and the "Second Coming" storyline, in which Cerebra detects the activation of the X-Gene in five as-yet unknown individuals, leading into the upcoming "The Five Lights" storyline in Uncanny X-Men.
• Several de-powered mutants seek to return to heroing, and are recruited into the post-Civil War New Warriors.
• Quicksilver ends up in the care of the Inhumans where he starts the Silent War by stealing the crystals of the Terrigen Mists. He then attempts to repower mutants, resulting in many of their injuries and some deaths. See "Son of M"
• Several characters returned from the dead, including Magik, Legion, and Hawkeye.
• The Russian black ops group, the Red Room, had lost all their mutant operatives' powers, resulting in them being ordered to patriotically kill themselves. This made the Red Room suspicious as to why their operatives lost their powers and the X-Men were left unscathed, leading them to think that the latter was somewhat responsible and captured Colossus, Wolverine and Nightcrawler for interrogation.