10 Shocking Comics Events That Changed Characters Forever
2. Miles Becomes Part Of The Main Marvel Universe - Secret Wars (2015)
The 2015 version of Secret Wars promised a ton of changes to the Marvel universe at large, but besides some small changes here and there (Ultimate Reed Richards becoming a mainstay villain etc.), for the most part Marvel took Secret Wars as a reset to zero. However, one change they did make would redefine one of their most popular characters forever.
The one character from the Ultimate universe that everyone agrees was awesome was Miles Morales. So of course when Secret Wars ended, they brought him over into the main universe to be the partner of Peter Parker's Spider-Man.
Not only was this move brilliant both creatively and from a marketing standpoint, it also forever shifted the way Miles interacted with the Marvel universe at large. Both because he no longer had the expectations and baggage of the Ultimate universe's Peter Parker looming over him, allowing him to be his own hero, but he also had Peter and other Spider heroes to hang out with and share the load.
It's the closest thing the post-One More Day Spider-Man universe has come to a truly impactful shakeup to the status quo, and it's better for it.