Decimation (comics)

"Decimation" is a 2005 Marvel Comicscrossoverstoryline that follows the aftermath of the House of M series. It begins with the one-shot issue titled Decimation: House of M – The Day After, written by Chris Claremont, and illustrated by Randall Green and Aaron Lopresti, released on November 9, 2005. The storyline then unfolded across multiple tie-in issues and series, all featuring the "Decimation" logo on the cover.

The name "Decimation" refers to Wanda Maximoff/Scarlet Witch’s act at the end of the House of M limited series, in which she utters the phrase "No more mutants". This rewrites the Marvel Universe by depowering the vast majority of mutants. This event is also referred to by several names in Marvel titles, most notably "M-Day". The titles and issues focus on a select range of characters across the Marvel Universe, including the X-Men, New X-Men, Excalibur, X-Factor Investigations, New Avengers, and more, as they adjust to the loss of their powers.