Configured Optional for Custom Mob Spells CustomMobSpells.jar
optionalMatching file found Matched file: Configured 2.2.3
Back to mods 
CurseForge · Minecraft mod
Custom Mob Spells
Create powerful magical enemies with customizable spells! This addon lets mobs use Iron's Spells 'n Spellbooks magic with fully configurable spell lists, levels, and behaviors.
Choose a version Pick your version below, then grab the matching file.
Quick answer
Which Custom Mob Spells release should I use?
Latest stable file CustomMobSpells.jar
Game version 1.20.1
Loader Forge
Custom Mob Spells CustomMobSpells.jar targets 1.20.1 with Forge. The project page does not say whether this file belongs on the client, dedicated server, or both. All 5 required mods have matching files.
Where it goes
Is Custom Mob Spells required on the client, server, or both?
The project page does not say whether this file belongs on the client, dedicated server, or both.
Client Source doesn’t say
Dedicated server Source doesn’t say
Loader for this release Forge
Required install it here Optional supported, not mandatory Not supported do not install here Source doesn’t say do not assume
The source does not explicitly classify this release as client-only or server-only.
What else does Custom Mob Spells CustomMobSpells.jar need?
CustomMobSpells.jar. Change the file and its required mods may change too.
Install Iron's Spells 'n Spellbooks, Iron's Lib, playerAnimator, Curios API and 1 more first. We found matching files for this game-version and loader setup. 6 come through another mod in the chain.
2 listed on this file 6 pulled in by those mods
Iron's Spells 'n Spellbooks Needed by Custom Mob Spells CustomMobSpells.jar
requiredMatching file found Matched file: v1.20.1-3.16.3
Catalogue Needed by Configured
pulled inMatching file found Matched file: Catalogue 1.8.0
Iron's Lib Needed by Iron's Spells 'n Spellbooks
pulled inMatching file found Matched file: irons_lib-1.20.1-2.1.0.jar
playerAnimator Needed by Iron's Spells 'n Spellbooks
pulled inMatching file found Matched file: player-animation-lib-forge-1.0.2-rc1+1.20.jar
Curios API Needed by Iron's Spells 'n Spellbooks
pulled inMatching file found Matched file: curios-forge-5.14.1+1.20.1.jar
GeckoLib Needed by Iron's Spells 'n Spellbooks
pulled inMatching file found Matched file: geckolib-forge-1.20.1-4.8.4.jar
bendy-lib Needed by playerAnimator
pulled inMatching file found Matched file: bendy-lib-forge-4.0.0.jar
6 extra mods were pulled in by other dependencies. Indented rows show who needs each one. We only count dependency files that match this setup. A file for another loader does not fill the gap.
Before you install it
Add Custom Mob Spells without breaking your instance.
Built for Custom Mob Spells CustomMobSpells.jar. Pick another file and the loader, install side or required mods may change.
- 01
Stick to this file
Use CustomMobSpells.jar. It targets 1.20.1 with Forge; another release may have different loader, side or dependency requirements.
- 02
Bring the mods it needs
Install Iron's Spells 'n Spellbooks, Iron's Lib, playerAnimator, Curios API and 1 more first. We found matching files for this game-version and loader setup. 6 come through another mod in the chain.
- 03
Put it on the correct side
The project page does not say whether this file belongs on the client, dedicated server, or both.
- 04
Pick the file you checked
Use the “Get this file” button beside CustomMobSpells.jar. It opens that exact file at the source.
About this project
What does Custom Mob Spells add?
Custom Mob Spells
An addon mod for Iron's Spells 'n Spellbooks ✨, letting you freely customize magic for mobs in Minecraft.
You can make regular monsters, elites, bosses, and even creatures from other mods cast all kinds of spells. Tweak their spells, levels and related behaviors freely via config files.
No need to modify the base Iron's Spells 'n Spellbooks mod, nor recompile any mods 📝.
You can edit mobs' magical abilities right in the config menu.
Works not only for vanilla Minecraft mobs, but also creatures added by other mods.
As long as the target mob has a properly registered entity ID, you can configure it 💫
Project description from CurseForge.
Pick your setup
Custom Mob Spells by Minecraft version and loader
Choose the version and loader you play, then open the matching release.
Minecraft version
1.20.1
1 loader buildCheck the dependencies, then try the file in a copied instance before changing a world you care about.
Recent files
Custom Mob Spells versions and loaders
CustomMobSpells.jar
23 Sept 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 5 required · matched Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
mobs_spells_addon-forge-1.20.1.jar
19 Sept 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Custom Mob Spells.jar
10 Sept 2026
Client Source doesn’t say Server Source doesn’t say Dependencies 1 required · 1 unchecked Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
mobs_spells_addon-forge-1.20.1.jar
6 Sept 2026
Client Source doesn’t say Server Source doesn’t say Dependencies No extras listed Listed on Release listing
Check the 1.20.1 · Forge setup 1.20.1Forge release
Looking for an older file? The official CurseForge project page is in Resources.
mod CurseForge · Minecraft
Loot Particles
**Loot Particles** is a lightweight Minecraft mod that makes it easier to locate items dropped on the ground by adding a subtle glowing particle effect around them.
mod CurseForge · Minecraft
Ice And Fire: Withered Dragon
Withered Dragon is an addon for Ice and Fire that introduces a new form of dragon, bringing resurrection, Wither powers, undead abilities, and new ways to progress in the world.
mod CurseForge · Minecraft
Beat Lamp
Real-time music visualizer lamps with equalizer modes, RGB effects, and particles.