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The X-Men have lost many, many times over the years. While it happens to every superhero or superteam, the X-Men have a lot riding on their battles, and their defeats have often been pretty devastating. These ten X-Men losses are the worst the team has experienced.
10) “X-Men Disassembled”

“X-Men Disassembled” was a mini X-Men reboot from 2018. Uncanny X-Men was relaunched as a weekly series, pitting the X-Men against X-Man, who had embraced his messianic side. X-Man wanted to fix the world, but he wanted to force his view of perfection on everyone, so the X-Men stood in his way. The team took some losses, and eventually X-Man merged with Legion, making him more powerful than ever. While the X-Men were able to survive the battle, X-Man was able to create his own universe and pull them into it. This counts as a loss in my book, since although they survived, they couldn’t stop the bad guy.
9) House of M

House of M has a lot of problems for X-Men fans, and one of them is that they are the only losers of the story. The X-Men and Avengers met to decide what to do about the Scarlet Witch’s madness, and she creates a whole new world where mutants are the dominant species thanks to Quicksilver talking her into it. Wolverine and Layla Miller are able to give everyone back their memories and they all attack the House of M, learning the truth about the whole situation. Scarlet Witch goes even crazier, then she uncreates this new world, while also casting a spell that takes away the powers of the bast majority of mutants. The world was saved, but the X-Men were damaged to the greatest extent they ever had been.
8) “E Is for Extinction”

Grant Morrison’s New X-Men is a classic, and it kicks off with a story that sees the X-Men lose big time, despite thinking that they won: “E Is for Extinction”. Cassandra Nova was about to commit mutant genocide when Wolverine and Cyclops discover her. She sent off the Mega-Sentinels to Genosha, fighting the two X-Men as 16 million mutants died. They beat her and brought her to the X-Mansion, but she broke free and fought her way to Cerebra. Her stated goal was to kill mutants with it, but she was stopped by Emma Frost, who broke her neck. However, instead, Nova used Cerebra to take over Xavier’s body, and then shot her own body, where she had put Xavier’s mind. The X-Men thought they won, but Nova had outclassed them in every way.
7) X-Men (Vol. 2) #2

X-Men (Vol. 2) #1-3 pit the X-Men against Magneto and the Acolytes. In the first issue of the series, the X-Men Blue Team are able to overpower the Acolytes. Then, Magneto shows up. X-Men (Vol. 2) #2 sees the X-Men battling Magneto and the remnants of the Acolytes, and with Magneto’s help, the X-Men are defeated. Then, Magneto attacked the X-Mansion, taking Xavier and Moira MacTaggert prisoner as revenge for their role in de-aging him and messing with his mind. He’s able to take control of the X-Men, which leads to the last issue of the story, where the Gold Team comes to save the day. However, the X-Men still lost this fight, and Asteroid M is destroyed thanks to a traitor in the Acolytes.
6) “Old Man Logan”

“Old Man Logan” is a Wolverine classic, and the X-Men losing plays a big role in it. In the past, the villains decided to get serious about attacking the heroes and went after them like an army. However, against the X-Men, they only sent Mysterio. Mysterio uses his powers on Wolverine, making him think that the X-Men are actually villains, and Wolverine runs through them, killing every single one of this friends. Now, yes, this is highly improbable, but it still counts as an X-Men loss even if you think there’s no way that Wolverine could beat them all.













