Talk:Immortality/@comment-26967699-20190103175436/@comment-26967699-20190103201114

But it is said that the only way for them to die is to kill their original counterpart. The "evil selves" are manifestations of how the original one sees them, so it's very unlikely that this will change over time, like aging.

And yes, they are invulnerable, meaning they are immortal. That's what immortal means. They don't get hurt with traditional and normal attacks, but only with specific elements.