run the /function attribute:uninstall to remove the scoreboards and storage data.
add value
/function attribute:modify {attribute:"generic.max_health",value:10}
remove value
/function attribute:modify {attribute:"generic.max_health",value:-10}
works with all attributes(haven't tested them all, but it should)
works up to the 6th decimal
/function attribute:modify {attribute:"generic.movement_speed",value:0.000055}
Quick facts
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.20.2, 1.20.3, 1.20.4
- How to install: Install the matching mod loader (Forge, Fabric or NeoForge) for your Minecraft version. → Download the .jar. → Put it in the .minecraft/mods folder and launch that loader profile.
- Where to get it: Opens on Modrinth — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — see the MC Java Mods guides for the full walkthrough.
Verified by MCModsHub
- Downloads as attribute_modify_library_1.0.0-1.20.2-1.20.6.zip
- Download size: 3 KB
- Download link checked 20 Aug 2026 — working
These come from our own check of the pack file, not from the source page.