








This datapack was created because running Cobblemon: Mega Showdown on a multiplayer server usually requires every player to find extremely rare structures which can be quite tedious and make battles feel unfair on those who do not have said items.
This datapack takes the concept of duplicating armour trims in vanilla minecraft, and extends that functionality to these battle gimmick items via custom crafting recipes. (It also allows uncrafting certain items into their core component, for example a mega bracelet can be crafted back into a keystone)
The idea is that, once one player finds one of these rare items, they can share it with others to duplicate, the same way players often do with armour trims or netherite upgrades.
- 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 — see the MC Java Mods guides for the full walkthrough.
- Downloads as dupeable_mega_showdown_items.zip
- Download size: 41 KB
- Download link checked 29 Aug 2026 — working
These come from our own check of the pack file, not from the source page.