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๐Ÿ›ก๏ธ Instant-Shield-Break

by shubham96__

Instant-Shield-Break, a Fabric client mod, swaps to an axe for the exact tick a player attacks a shield-raising opponent, then swaps back.

FabricClient-side onlyMIT License1.19 โ€“ 1.21.11

What it does

When the attacked player is actively raising a shield, the mod checks the target and switches the held item to an axe, so the hit disables the shield. The swap is reverted in the same call-stack frame, so the original item is back in hand without any extra ticks. A 150ms cooldown guards against repeated swapping during spam attacks, and the mod only intercepts player targets, so attacks on mobs pass through unchanged.

The mod targets PvP situations such as nethpot fights, where the shield check catches the intent before the usual five-tick raise delay. Axe lookup scans the hotbar first and then the main inventory, and it remembers the last axe slot used for quick repeat attacks. Modded axes that extend AxeItem are also recognized. The swap is sent to the server with the vanilla slot-update packet, so the server stays in sync.

Installation needs Fabric and Prism Mod Menu. Only the player's game needs it, and servers run without it. The code is under the MIT License and is not open source, and builds exist for 1.19 โ€“ 1.21.11 across 24 release versions.

Key features

  1. Shield detection

    Before any swap takes place, the mod checks if the target player is in the middle of raising a shield.

  2. Axe swap and revert

    Switches to an axe at the moment of the hit and returns the original item within the same tick.

  3. Inventory scanning

    Searches hotbar slots 0 to 8, then main inventory slots 9 to 35, and caches the last axe slot used.

  4. Spam cooldown

    A 150ms cooldown limits how often the swap can fire during rapid attacks.

Compatibility

Latest build for each game version and loader.

1.21.x12 of 12 versions with builds
1.21.111.0
1.21.101.0
1.21.91.0
1.21.81.0
1.21.71.0
1.21.61.0
1.21.51.0
1.21.41.0
1.21.31.0
1.21.21.0
1.21.11.0
1.211.0
1.20.x7 of 7 versions with builds
1.19.x5 of 5 versions with builds
ReleaseBetaAlphaNot available

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

Requirements

Dependencies declared by the latest file for each loader.

Required 1

Prism Mod Menuโœฆ Prism Mod Menu Super Cool Animations โšก
Required

How it compares

Full comparison

SwapMyAxe is a Fabric client mod for 1.21.10 under the GNU General Public License v3.0 only, and it is open source. Axe and Sword Switcher is a Fabric client mod for 1.21.1 under the MIT License and is not open source. EasyShieldBreak is a Fabric client mod for 1.20.1 โ€“ 1.21.4 under All rights reserved and is not open source.

ModLoadersGame versionsEnvironmentUpdated
๐Ÿ›ก๏ธ Instant-Shield-BreakFabric1.19 โ€“ 1.21.11Client-side only2026-04-21
SwapMyAxeFabric1.21.10Client-side only2026-02-27
Axe and Sword SwitcherFabric1.21.1Client-side only2025-10-15
EasyShieldBreakFabric1.20.1 โ€“ 1.21.4Client-side only2025-11-24

Questions

Does Instant-Shield-Break need Prism Mod Menu?

Yes. Prism Mod Menu is a required dependency, and the mod is published for Fabric only.

Do servers need Instant-Shield-Break installed?

No. The environment is client-side only, so only the client runs the mod, though the swap is sent to the server with the vanilla slot-update packet.

Which game versions does Instant-Shield-Break cover?

Builds cover 1.19 โ€“ 1.21.11, and the latest Fabric file is 1.0 for 1.21.11, published on 2026-04-21.

In the catalog

๐Ÿ›ก๏ธ Instant-Shield-Break is one of 7,216 Magic mods on ModsFinder, and one of 3,630 Magic mods for Fabric. 19,862 mods support Minecraft 1.21.11.

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What the author says

Text Description (Accessibility Transcription) Tags: Fabric API ยท Java ยท MC 1.19โ€“1.21 ยท 1-tick swap ยท Always active ยท Zero flicker
shubham96__, on the Modrinth page

Official listing

Owner
shubham96__
Published
2026-04-21
Updated on Modrinth
2026-04-21
Facts verified
2026-10-15

Tags