Auto-Shieldbreaker / StunSlam
Java mod listed for Minecraft 1.21. Downloads from the MC Java Mods app on Android.
Auto-Shieldbreaker/Stunslam is a lightweight, client-side utility that automates high-precision PvP weapon switching by executing instant shield-breaks…
⬇ Download on CurseForgeThe author built this one for Minecraft 1.21–1.21.11 on Fabric. On other versions it may install and then do nothing.
Overview
This lightweight client-side mod optimizes mechanical inputs in modern Minecraft PvP (1.21+), streamlining hotbar swaps and attack packets. Built strictly on native Minecraft libraries, the mod requires zero external dependencies, ensuring maximum performance and compatibility with optimization mods.
Features
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Auto-Shieldbreaker: Detects blocking opponents in your crosshair and automatically swaps to an available axe upon attacking to disable their shield instantly.
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Stun Slam Keybind (New): Executes the advanced Mace combo via a single, fully rebindable hotkey.
How the Stun Slam Works
When the designated hotkey is pressed, the mod scans your hotbar for an axe and a Mace. If a valid target is within reach, it sequences the network packets for the axe strike (shield-break) and the follow-up Mace hit within the exact same game tick (0.05 seconds). This is ideal for maximizing the Mace's fall-damage bonus right after shattering the opponent's guard, especially when using Wind Charges.
Configuration
The hotkey for the Stun Slam can be customized seamlessly via the standard vanilla controls menu (Options -> Controls -> Key Binds).
- Edition: Minecraft Java
- File type: .jar
- Minecraft versions listed: 1.21, 1.21.8, 1.21.5
- 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 CurseForge — not every file is mirrored on our own servers.
Install steps are the general flow for this file type — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as AutoStunslam-2.0.0.jar — drop this file into the mods folder
- Download size: 33 KB
- Download link checked 3 Oct 2026 — working
These come from our own check of the pack file, not from the source page.