Even though the Young Guardians each have their own set of unique abilities, I gave them one power that they have in common: immortality. They are immortal in the sense that they will never physically age, never get sick, or die of natural causes, but they can still be killed if the physical trauma they sustain is great enough. In other words, even though they will not physically age, their minds will continue to sharpen as the years go by. With this power shared among them, they would truly be Young Guardians of society. I gave the characters this power because I realized that most superheroes would inevitably wither and die, leaving the world vulnerable to the wrath of evil. So with agelessness, the Young Guardians will be able to save the world for a good long while.