

A chosen player receives a custom Grayskull Compass. Castle Grayskull generates near world spawn. /locate grayskull reveals the castle and sword-chest location. The chest contains the Power Sword. Holding the transformation button completes a five-second cinematic transformation. Transformation includes animated posing, energy rings, sky beams, lightning, sound, screen flashes, camera shake, and multiplayer-visible effects. He-Man form lasts ten minutes. Lethal damage de-transforms He-Man instead of killing him. The Grayskull power bar increases by one per hit dealt or received. Higher power improves damage, defense, speed, and survivability. Full power matches the Avatar mod’s strongest ability tier. The Power Sword deals three times netherite-sword damage. Optional Avatar mod compatibility prevents a player from being both Avatar and He-Man. The optimized 3D sword retains its texture and correct hand position. Transformation state, cooldowns, compass target, chosen player, and castle location persist between sessions.
- Edition: Minecraft Java
- File type: .jar
- Minecraft version listed: 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 — How to install Minecraft Java mods & modpacks walks through it step by step.
- Ships as masteroftheuniverse-1.0.0.jar — drop this file into the mods folder
- Download size: 5.5 MB
- Download link checked 23 Aug 2026 — working
These come from our own check of the pack file, not from the source page.