Currently working on something that I want to add into my verse, The Comeback Revival (I know it's a shitty name, still working on it)

The Comeback Revival, people who are important to the story or have incredible power have this ability, for example, the main character, the main cast, God-like beings etc. And also usually people who fight for good can have this ability, almost no villains get it, and people who do have this ability usually don't know they have it.

When the world is in danger and there's no one to stop it or there's something threatening the multiverse, people with this ability and have died during that period will come back to life, it doesn't matter how they died or got killed, they will come back to life to stop this great danger. Also if they're strong enough, they could just come back to life without the world being in danger. People who have come back to life with this power are usually stronger than before, they would have the strength enough to stop the threats they're facing against or gain the hax they need to stop the threats.

People with this ability can come back to live from anything, for example, they could come back to life after being erased from existence, getting retcon out of existence, getting erased at informational level or getting completely erased etc, they would always come back as long as there's something out there that threatens people.

Tho they don't always come back to life, some people with this ability have stayed dead because there's no need for them to come back. And the time they get revived won't always be consistent, for example, some would revive the moment the great threat appears while others would get revived when its mere days before the world ends.

But the results always stay the same, the good one wins while the bad loses (a bit cheesy I know).