[ISS LM]Legendary Mage
by LOAE_U987
Players who want elemental combinations in their spells can add [ISS LM]Legendary Mage, a NeoForge 1.21.1 expansion built on Iron's Spellbooks with an elemental reaction system.
What it does
The mod extends Iron's Spellbooks with a new elemental reaction system. Spells can apply custom elemental marks, and two marks that meet in combat can trigger reactions, letting a caster combine elements in ways the base spell set does not allow. A spell school for the elements is added alongside the collection of spells the author designed for the mod.
Iron's Spellbooks is a required dependency, so the spell system, spellbooks and casting mechanics come from that mod and [ISS LM]Legendary Mage only adds to them. The author states that the expansion is compatible with third-party magic mods. Legendary Mage runs on client and server, so the server and every player need it. Files are published for NeoForge only, for 1.21.1, with 1.1.3 as the latest file. The code is open source under the MIT License, and source code, an issue tracker and a wiki are linked from the project.
Key features
Elemental reaction system
Elemental marks applied by spells can react with each other, producing effects that depend on the combination of elements.
Custom elemental marks
New elemental marks are added to the magic system, giving spells a way to set up reactions in combat.
Custom spell school
A dedicated spell school for the elements is added, with its own collection of spells designed for the mod.
Third-party magic compatibility
The author states that the mod works alongside other third-party magic mods.
Gallery
Compatibility
Latest build for each game version and loader.
Only full game releases are shown. This mod publishes no snapshot builds.
How it compares
Dreamless Spells is a NeoForge 1.21.1 addon for Iron's Spellbooks, also client and server, but released under All rights reserved and not open source. Jeff's ISS Addons is another NeoForge 1.21.1 addon for the same spell system, under All rights reserved and not open source. Monsters & Spellbooks, named Iron's Spells 'n Spellbooks:Monsters & Spellbooks in the catalog, is open source under the MIT License for NeoForge 1.21.1, and it covers a different set of spell content than the elemental reactions added here.
| Mod | Loaders | Game versions | Environment | Updated |
|---|---|---|---|---|
| [ISS LM]Legendary Mage | NeoForge | 1.21.1 | Client and server | 2026-10-11 |
| Dreamless Spells | NeoForge | 1.21.1 | Client and server | 2026-04-10 |
| Jeff's ISS Addons | NeoForge | 1.21.1 | Client and server | 2025-12-15 |
| Iron's Spells 'n Spellbooks:Monsters & Spellbooks | NeoForge | 1.21.1 | Client and server | 2026-07-12 |
Questions
Does Legendary Mage need Iron's Spellbooks?
Does the server need Legendary Mage?
Which game versions are supported?
In the catalog
[ISS LM]Legendary Mage is one of 7,216 Magic mods on ModsFinder, and one of 2,992 Magic mods for NeoForge. 32,366 mods support Minecraft 1.21.1.
More from LOAE_U987
Similar mods
What the author says
Legendary Mage is a NeoForge 1.21.1 magic expansion mod built upon Iron's Spells 'n Spellbooks, introducing a brand-new Elemental Reaction System and uniquely designed spells.
Official listing
- Modrinth page
- modrinth.com/mod/legendary-mage
- Owner
- LOAE_U987
- Published
- 2026-03-14
- Updated on Modrinth
- 2026-10-11
- Facts verified
- 2026-10-15