Iron's Spellbooks Tweaks

Installed on a server, the mod reads a global config and lets each world override it. Options cover mana cooldowns, mana regeneration multipliers, spell power, buff durations, dimension blocks, rarity gating, and sword toggles. A world can copy the global file into its own serverconfig folder through an op-only command and then edit it, and any missing key falls back to the global value.

The mod also includes a datapack-driven system for gating spells, dimensions and bonuses. Pack developers can require advancements or boss kills before a reward applies, and each gate can carry a hint string shown by a command. Multiple gates granting the same bonus stack, and negative values are accepted. Multipliers stack multiplicatively with health and damage scaling from other mods.

The mod is server-side only, so players join without installing it. It requires Iron's Spells 'n Spellbooks 3.0.0+ on Forge for 1.20.1, and 1.21.1-3.15.0+ on NeoForge for 1.21.1. Iron's Spells 'n Spellbooks is an optional soft dependency, so the mod loads cleanly without it. The code is open source under the MIT License.