If you keep up with One Piece, Naruto, Bleach, or really most shounen manga, you may notice a significant amount of power creep over the course of the story, especially if there's a timeskip involved.

There used to be a time when Luffy was just a stupid Mr. Fantastic, Naruto was the world's worst ninja in swarm-form, and Ichigo didn't even know what a Shikai was. Now they've gotten to absolute ridiculous levels. Not quite Dragonball Z ridiculous yet, but there's still time.

We could measure these characters over various points in their careers: pre-timeskip, post-timeskip, at the end of their first or second arcs, etcetera, but we end up with arbitrary cutoff dates. We can't even go all the way to the present because these storylines are STILL going on, and Shounen authors can always make up some new way for their powers to grow.

So here's the rule:

Take three of the munchkiniest munchkins of players. The type of people who look at Level 30 Batman Wizards and think "I can do better." The type of people who create things like the Tippyverse. The type of people who make characters like Old Man Henderson and win Call of Cthulhu.

Each munchkin is assigned one of the three contestants: Monkey D. Luffy, Uzumaki Naruto, and Kurosaki Ichigo. They are then given the ENTIRETY of their given universe's mechanics to assume potential growth. If it is even the least bit possible that Naruto can learn a particular jutsu or exploit some factoid of the world of Naruto, it's fair game. The same goes for the One Piece settings and Bleach settings. The goal is for the munchkins to exploit whatever in-universe mechanics to figure out the greatest possible potential for each character and determine who would win.

The only restrictions are as follows:

1. Each character is restricted to the mechanics of their own universe. Naruto cannot get a Zanpakuto. Luffy cannot learn jutsus. Ichigo cannot eat a Devil Fruit. Etcetera.
2. There is no transparency between mechanics. Chakra is not the same thing as Haki which is not the same thing as Reiryoku or Reiatsu or whatever else Bleach uses. A Naruto technique which shuts down Chakra would not work to negate Ichigo or Luffy's techniques, for example.
3. Ichigo is technically a spirit when he fights usually, but the purposes of this fight they're all corporeal, can be killed, etc.
4. The battleground is some barren moon somewhere with no collateral damage to worry about but enough atmosphere and other basic features that the fighters can still operate at their peak.
5. No outside help. Naruto doesn't get any ninja allies. Luffy doesn't get his crew.
6. Any and all equipment and items that they can carry with them from their respective universes are fair game. Full metagaming IS allowed to decide what each character wants to bring to the fight.
7. Typically these characters get stronger under duress or when fighting for their friends, or fighting a stronger opponent, or something or other. For the sake of this fight, each character gets their max possible bonus that they could get for this X factor, despite no one else being around.
8. Temporary strategic retreats (Ex: Naruto going for cover so he can pull some ninja clone gambit) are acceptable. Long retreats (Ex: Naruto somehow hiding or teleporting far enough away until his opponents kill each other or fall asleep) are not acceptable and count as forfeits.
9. If a character can't be killed but merely knocked unconscious or absolutely unable to continue in some other way, that counts as a loss. If a character can be killed but has a way to come back from the dead, still counts as a loss.

BONUS ROUND: Submit another character to participate in this battle royale, one who you'd think would fit. Rules are no Dragonball in any of its incarnations (too easy), no Mechs, preferably Shounen genre and preferably the main protagonist.

No Fake Signatures