It's the Marvels epilogue issue, and no, if you're just interested in Jean, it's not necessary. The issue just recreates part of Uncanny X-Men 98 when the X-Men are by the ice rink at Rockefeller Center, except it's seen through the eyes of photojournalist Phil Sheldon. We see from afar the battle between the X-Men and some Sentinels. Jean's TK signature is seen from a distance but not Jean herself during the fight. Still, as a fan of Kurt Busiek, Alex Ross, and the Marvels series, I enjoyed it.
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I'm just thinking about how Jean's dream of a mutant nation came true. Krakoa is not completely different for Genosha and Utopia, but it's much more closer to what Jean wanted, which was for the mutant nation to be around the whole world. The main reason she wanted for it to be a nation in law only rather than everyone in a specific space was that mutants all grouped together just gave enemies a clear target and faccilitated genocide. But humans can't get into Krakoa, so that's not a worry anymore. She's crying after seeing the kids all happy and Xavier reassuring her.
Marvels has always been about seeing the Marvel Universe through the eyes of regular people. Each cover has shown iconic moments in Marvel history, but they always focused on Phil Sheldon and how those moments affected the bystanders. We didn't get to see Jean and Scott do much because they were on the top floor of a skyscraper when they were attacked by Sentinels while the other X-Men were outside on the ground by the ice rink (where Phil Sheldon was).
It was cool and a tremendous edge agains other telepaths but she can't do that anymore
One of the Omega Protocol....very interesting
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Priority of Mutant nation of Krakoa to protect and nurture its greatest natural resource : Omega Level Mutancts