Marvel’s merry mutants have been going through a bit of a movement of late in the world of comic books. The storyline known as Dawn of X has seen the X-Men and their associated characters go through enormous changes - including the founding of a mutant nation-state on the living mutant island of Krakoa and carving out a dominant position in the world’s economy through Krakoan technology and medicine - but, most importantly, the Dawn of X has been the death of the old ways and the dawn of the immortal mutant.
Sick and tired of seeing his people suffer, Charles Xavier - along with Magneto, Moira MacTaggert, and Apocalypse, who are the core of Krakoan leadership - devised a way for mutants to truly leave humanity behind by conquering mortality itself. Through a complex process that involves a Cerebro-facilitated hard drive of every mutant mind and the combined powers of resurrection specialists known as “The Five” - Hope Summers, Elixir, Proteus, Tempus, and Goldballs - Xavier is now able to bring any mutant who perishes back to life with few complications, and that’s a pretty big deal for a group that has traditionally been hated, feared, and hunted.
Of course, the resulting revolving door of mutant death has meant that the X-Men are now able to get away with being a lot less careful about their own safety - and that X-Men writers now have a free license to put characters other than Wolverine through as much gruesome punishment as they want with little in the way of long-term consequences.
As such, mutants are now immune to death - and they’re also dying in record numbers.
Every mutant is able to walk through any Krakoan gate and instantly find themselves in the mutant nation-state of Krakoa - every mutant, that is, except for Kitty Pryde. While the reasons behind this exception to the rule have yet to be explored, the potentially deadly consequences of not fitting in with the new mutant status quo are made tragically clear in Marauders #6.
While on a seafaring expedition for Krakoan interests, Pryde is betrayed by Sebastian Shaw, a member of Krakoa’s Quiet Council government. He targets Pryde with anti-mutant technology, paralyzes her, and throws her overboard to a watery demise. To make matters worse, The Five soon find that they’re unable to resurrect her - the first time they’ve failed to bring a mutant back to life.
As of this writing, Pryde remains deceased.Rough way to go?
Only rarely an ally to the X-Men before Dawn of X, the shapeshifting Mystique accompanies the team on their ill-fated space mission in House of X #4 - though she’s really on a secret mission all her own. Wishing to spy on the anti-mutant Orchis, Professor X and Magneto task Raven Darkholme with planting a Krakoan gate on the organization’s space station so that they can access it at anytime.
Mystique succeeds, but she’s also discovered by a couple of Orchis higher-ups moments later. Instead of confronting her, they instead choose to callously seal her into the room and open up a window into space - causing Mystique to be sucked out and frozen in the vacuum.
To make matters worse, Xavier and Magneto resurrect her shortly thereafter - only to send her right back to the same space station.Rough way to go?
When the X-Men are sent on a trip to take out a would-be Sentinel factory in space in House of X #4, few could predict that not a single one of them would make it home - particularly since the issue came out before the demise-defying prowess of The Five could be revealed.
Tragically, Nightcrawler is one of the first to fall, and he does so in fiery fashion. Left with no other option, Kurt Wagner valiantly offers to teleport his dear friend Wolverine out into open space so that the Mother Mold apparatus could be cut loose. In doing so, Nightcrawler disintegrates almost immediately - but it would only be a matter of hours before he would return to life via a resurrection pod back on Krakoa.Rough way to go?
Wolverine getting brainwashed and turning against his friends and family is a tale as old as time, but the new status quo of mutants in the Dawn of X means that he no longer has to feel so guilty about it - which is a good thing, given the events of Wolverine #1.
That issue sees Logan get mind-hacked by an ethereal smuggler known as the Pale Girl, causing him to lose control of himself and start hacking away at his teammates. In short order, he fatally skewers Jean Grey, Kid Omega, and Domino - though they’re all able to be brought back to life right away, and with no hard feelings.
Cyclops, on the other hand, is a lot less forgiving when it comes to the whole “stabbing Jean Grey” thing, causing some temporary tension between himself and his Dawn of X roommate, Wolverine.Rough way to go?