
Ace's Spell Utils
A util API for making Iron's Spells and Spellbooks addons
About this Mod
Ace's Spell Utils is a util API made for making Iron's Spells and Spellbooks addons. This mod contains some useful methods and classes for mod devs to use for their addons. Features will be continuously added if something is suggested or the need arises to make more.
Current features:
- Unique Spellcasting Mob class, used for making mobs with custom models to have custom casting animations for long, instant and continuous spells
- Generic Boss Entity class for making custom bosses more streamlined
- Generic Unique Boss Entity class for making spellcasting entities with custom models
- Wizard Spell Combo goal for spellcasting mobs
- A general Boss Music Manager & Boss Music Instance classes for doing custom and dynamic boss music
- Imbueable Curio class
- Imbueable Staff class
- Sheath Curio class
- A utils classes with niche methods for spells and mobs
- Mana Steal attribute
- Mana Rend attribute
- Hunger Steal attribute
- Evasive attribute
- Various custom casting animations free for use
- Custom item rarities for use
This mod is open source and MIT; any ISS addon dev is free to use this API for their mods. Any issues or suggestions should be added to the Github page
Available Versions
How to Install Ace's Spell Utils on Your Server
Order Server
Order a Minecraft Java server with at least 3 GB RAM (4 GB recommended).
Set neoforge Loader
In the panel under "Egg", select the neoforge loader and matching Minecraft version (1.21.1).
Install Mod
Open the mod browser in the dashboard and search for "Ace's Spell Utils". Click "Install" – done! Alternatively, upload the .jar via SFTP to the /mods folder.
Compatibility
Mod Loaders
Minecraft Versions
1.21.1
Server-side
✓ RequiredRecommended RAM
4 GB(min. 3 GB)Frequently Asked Questions
Ace's Spell Utils server crashes on startup – what to do?
Most common cause: wrong neoforge version or insufficient RAM. Check the server log (latest.log) for "OutOfMemoryError" or "Mixin" errors. With Mado Hosting: ensure at least 3 GB RAM is allocated and the loader matches the mod version (1.21.1). You can switch loaders with one click in the panel.
Is Ace's Spell Utils compatible with neoforge?
Ace's Spell Utils officially supports neoforge for Minecraft 1.21.1. The Mado dashboard automatically detects incompatible loader combinations.
Server lagging with Ace's Spell Utils – how to optimize performance?
Recommended RAM: 4 GB (per 8 players). Use /spark profiler to check if Ace's Spell Utils consumes the most tick time. Common fixes: reduce server view-distance to 8-10, install "performant" or "starlight" as supplementary mods on Forge. With Mado Hosting, your server runs on NVMe SSDs with dedicated CPU cores for minimal latency.
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