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Mine Mine No Mi Black Blades

by YumiSlove

Mine Mine No Mi Black Blades turns Forge swords into Black Blades, a weapon type that gains curses, ranks and Haki effects as it is used.

ForgeClient and serverAll rights reserved1.16.5 – 1.20.6

What it does

A forged sword can awaken as a Black Blade once it meets the requirements, which include using it long enough and fighting strong enemies while holding Haki. The transformation is announced to the server, and the blade's curses are stored on the item itself and shown in its tooltip. Curses are random by default, so some blades are much rarer or more dangerous than others, and admin commands can test them directly.

Black Blades keep evolving through use. Killing enough enemies after forging raises the blade's rank, and higher ranks grant better critical bonuses. Legendary blades, including the Meito grading system with named weapons, are announced server-wide when achieved. Brawlers can also forge their own fists, and training hard enough with bare hands turns them into Black Fists.

Installation needs Forge, and the environment is client and server, so the server and every player need the mod. Files are published for Forge only, with the latest build 1.4.5 for 1.20.6, released on 2026-04-26. Seven release versions cover the game versions in this range, and the code is not open source, under All rights reserved.

Key features

  1. Curse-based awakening

    A forged sword awakens with one of three curses, and the curse rolls are set by default with rarity varying per blade.

  2. Rank progression

    Kills after forging raise the blade's rank, and higher ranks add stronger critical bonuses.

  3. Haki activation

    Busoshoku Haki can be held for a set time, and holding it while fighting helps the blade transform.

  4. Named legendary weapons

    Legendary blades such as the Meito follow a grading system and are announced to the server when achieved.

  5. Imbued dark tint

    Imbued blades always show a dark tint, and the Black Blade tooltip lists its state.

Compatibility

Latest build for each game version and loader.

1.20.61.4.5
1.20.51.4.5
1.20.41.4.5
1.20.31.4.5
1.20.21.4.5
1.20.11.4.5
1.16.51.4.5
ReleaseBetaAlphaNot available

Only full game releases are shown. This mod publishes no snapshot builds.

Use cases

Who it’s for: Players who want a long-term sword progression tied to One Piece Haki themes, and server owners who want announced milestones for weapon achievements.

How it compares

Full comparison

Master Sword runs on Fabric and Forge for 1.19.2 – 1.20.1, while Mine Mine No Mi Black Blades is Forge only and covers more game versions. Death Blade by KTownStudios and Fire Blade are both Forge builds for 1.20.1 with the same client and server environment, and none of the three is open source.

ModLoadersGame versionsEnvironmentUpdated
Mine Mine No Mi Black BladesForge1.16.5 – 1.20.6Client and server2026-04-26
Master SwordFabric and Forge1.19.2 – 1.20.1Client and server2025-03-25
Death Blade by KTownStudiosForge1.20.1Client and server2025-11-11
Fire BladeForge1.20.1Client and server2026-02-13

Questions

Does Mine Mine No Mi Black Blades need to be installed on the server?

Yes. Servers that run it need every player to install it too.

Which loader does Mine Mine No Mi Black Blades use?

Forge is the only loader, and files are published for it across the full game version range.

What makes a sword turn into a Black Blade?

The sword must be used long enough and fight strong enemies while Haki is held. Once the requirements are met it transforms and the curses are rolled.

In the catalog

Mine Mine No Mi Black Blades is one of 17,631 Equipment mods on ModsFinder, and one of 9,216 Equipment mods for Forge. 11,154 mods support Minecraft 1.20.6.

Similar mods

What the author says

You know how in One Piece, swords like Yoru and Shusui turned black after years of battle? This mod adds that to Minecraft. Use a sword long enough with Haki, fight strong enemies, and it'll permanently turn into a Black Blade. But that's not all - named blades can also awaken as Meito, gaining tiered grades, better…
YumiSlove, on the Modrinth page

Official listing

Owner
YumiSlove
Published
2026-04-26
Updated on Modrinth
2026-04-26
Facts verified
2026-10-15

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