You literally just described the Gura Gura no mi. Also for more sound based devil fruit shenanigans, try the greatest One Piece fanfiction This Bites! by the great minds of Cross-Brain.
If not killing a character would improve the story instead of detracting from it, then not killing them isn’t wimping out, it’s called being a good writer.
But for a more in-depth look at things, if normally you kill off characters like a drunk rich guy in charge of a death game, then wouldn’t...
Okay I probably should have checked beforehand, but exactly how much power do I have available while at max, because I was under the assumption that you could have up to casual planet buster levels of power?
I mean really, the entire premise was that after going on a multiversal adventure to...
I said kill for dramatic effect, I thought of the dreamless sleep thing first and it's what I would use in the scenario.
Killing everyone has no actual benefit. Why would you want to go back to a place that weakens you if not for the people. And it loses all strategic value if the crack isn't...
These kinds of puzzles always have a simple solution, often the harder someone makes the challenge the easier loopholes are to find. You placed the planet in pure indestructibility and the only way in or out is a tiny crack that emits infinite energy into the void that pushes away all matter...