Warning: Major spoilers for X-Deaths of Wolverine ahead!
The finale of Marvel Comics most recent X-Men event, X-Lives/X-Deaths of Wolverine, has finally delivered the major plot twist that fans have been waiting for since Jonathan Hickman's 2019 House of X relaunch. The former mutant Moira MacTaggart, who was first reintroduced as the secret savior of mutantdom and true founder of Krakoa, has now fully embraced her selfish, evil desire to wipe out the mutants, becoming a cyborg-like supervillain.
In Hickman's Powers of X it was revealed that Moira X is a mutant with two major abilities, one is that she is undetectable as a mutant by anyone, and the other is that anytime she dies the entire universe resets, with only her retaining the memories of her past lives. It was established that Moira had lived 9 lives, and the current Marvel continuity that all fans know is her 10th life, with the mutant precognitive Destiny warning her that she would only have 10, potentially 11, lives. While early in her days as a resurrecting mutant she had some hateful views towards other mutants, it seemed that by her 10th life she had found out a way to dedicate her life to creating a mutant paradise, Krakoa, with Xavier and Magneto.
X-Deaths of Wolverine - written by Benjamin Percy with art by Federico Valentini and Dijo Lima - spins directly out of the explosive Inferno event, which saw Destiny and her wife Mystique discover that Moira had been lying to Xavier and Magneto the whole time, and was actually getting all the mutants to Krakoa so she could find a way to remove the X-Gene from them all, and any future babies born to them, effectively ending the mutant race. Mystique shot Moira with a gun made by Forge that removed Moira's mutant ability, meaning that she could not restart the timeline anymore, forcing her into exile from Krakoa. Throughout X-Deaths, Moira has been trying to stay alive and find a way to create a future where all humans are absorbed into the Phalanx Collective, by partnering with a human scientist, avoiding the Omega Wolverine, and brutally slaughtering her former lover Banshee.
In X-Deaths of Wolverine #5 Moira appears to die within the first few pages, killed by the Phalanx-controlled Omega Wolverine after sneaking her way onto Krakoa in an attempt to take down the X-Men from inside. However, by the end of the issue, it is clear that Moira's physical death was not the end of her lives, with the former mutant savior bursting forth from her own grave as a truly terrifying cyborg, the precursor to the deadly Human-Machine Supremacy from many of her futures. It seems that Marvel is finally allowing Moira to fully embrace her evil side, allowing her arrogance and selfish self-preservation to win out over any of her ethics or former love for the X-Men. Destiny was right, Moira does have an 11th life, but it is a life where she is living as a Human-Machine hybrid, potentially unable to ever die.
Jonathan Hickman has slowly been setting up Moira's descent into madness (how could anyone stay sane after living thousands of years throughout 10 lives) and villainy since the original reboot of the X-Men, and Benjamin Percy and the whole X-Office have found a brilliant way to position Moira as the mutants most dangerous foe in an incredibly satisfying twist. Make sure to read the finale of X-Deaths of Wolverine by Marvel Comics to see the creation of a new and deadly Moira X, and make sure to check out Judgement Day which will see Moira partner with Druig of the Eternals to take down the X-Men.