Herzium

Separate Fabric builds for Minecraft 1.21.10, 1.21.11, 26.1, 26.1.1, 26.1.2, 26.2 and 26.3. Choose the JAR matching your exact game version.

• Fast bursts use the right item. With the Herzium order, "obsidian, use, crystal, use" inside one tick now places the obsidian and then the crystal on top of it on the next tick. 1.10.7 and Vanilla placed only one of them. The same goes for anchor → glowstone → detonate and rail → TNT minecart.
• Three new switches in Mod Menu, all on in a fresh install:
  • Split bursts: a click that would run with the wrong item waits one tick, with the key that goes with it.
  • Strict attacks: an attack hits with the item you held when you pressed it.
  • Offhand sync: "totem key, swap" in one tick puts the totem in your offhand, not the item you held before.
• The mouse wheel counts as your newest input: a queued hotbar key no longer undoes a wheel turn on the next tick.
• Every tick still changes slot at most once, before its clicks, as Vanilla does. A click can only ever wait one tick; nothing is sent earlier and no click is created or repeated. Tested against Grim Anticheat, with and without its experimental checks, with Ping Equalizer from 0 to 150 ms: no alerts.

Your saved order is kept when you update; the switches start on and are one click away in Mod Menu.

Requires Fabric Loader 0.19.3+. Minecraft 1.21.x uses Java 21; Minecraft 26.x uses Java 25. Install Fabric API for localized mod text and Mod Menu to reach the settings button. Client-side only.