I think every character would be different if they were different.
X-Men is ripe for nightmare fuel if you think about it long enough. Kitty Pryde is constantly one mistake away from becoming a gel banana.
Gel banana?
She can gel my banana any time
Mmm gel banana
I remember reading an excerpt from the novelization of X2, the scene where the fake cerebro gets used on all the mutants around the world, and it goes into excruciating detail of what happens to the characters in the compound (being so close to the epicenter):
Basically Mystique starts changing and shape shifting so much her body starts melting off of her bones.
She’s secretly an agent of SERN!
Does he have to eat lots to power the laser
It’s sadly more stupid than that. His eyes open a portal to another dimension, although that’s been retconned and apparently now they “metabolize the suns energy”
One ticket to the laser dimension please
you can’t make sense of X-Men in terms of physics. Where does Wolverine’s body regenerates from? meat dimension
Presumably the same way your body regenerates; his is just faster. And IIRC, he has to eat a lot after sustaining an injury to get what his body needs.
You just need to make his eyes roll up to kill him.
You choose how.