
Berserk Potion
This datapack for Minecraft 1.21.1 adds a potion that provides an edge to all of us who likes to rush into combat without second thoughts.
⬇ Download on Modrinth
📝Description
This datapack for Minecraft 1.21.1 adds the Berserker Potion, which upon consumption grants stackable Absorption levels for each hostile mob killed. The effect strengthens with each additional kill, but will stop once you cease fighting.
⚒️How to obtain:
Craft a Berserker potion with:
- 1 × Water Bottle
- 1 × Nether Wart
- 1 × Gold Nugget
- 1 × Redstone Dust
🔥Effect details
The Berserk potion last for 2min (2400 ticks) by default. Any kills while the potion is active grants you 1 Level of Absorption (2 temporary Hearts) up to a max level of 5. The Absorption effect lasts for 10s (200 ticks) initially and will be extended by 5s (100 ticks) per kill. The Absorption effect also expires when the potion effect ends and also on player death.
⚙️Datapack configuration
Run the following command to configure the max Absorption level, base and bonus duration per kill of the Absorption effect and the potion duration:
/function berserk:config
📤Uninstall
Either open the config menu and select the uninstall option or run the following command:
/function berserk:uninstall
⚠️Compatibility
- Bigger Stack Size: Erases the potions's custom NBT data, which triggers the Berserk effect. Use e.g. Stack Manager instead.
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.1
- 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.
- Downloads as berserk.zip
- Download size: 6 KB
- Download link checked 24 Aug 2026 — working
These come from our own check of the pack file, not from the source page.