Luckified

Luck is a player attribute, and this mod gives it more uses. Higher Luck raises the chance of better results in several places: gear generated as loot becomes more likely to carry enchantments, and rare loot tiers roll more often. Librarian villagers are adjusted too, so their enchanted book trades can offer higher-level books as Luck grows. Mimic spawns from RLArtifacts, the weights of rare modifiers in Baubles and BountifulBaubles at the Reforging Station, and the weights of rare qualities for items in QualityTools are all shifted in the same direction. Gold bookwyrms in DefiledLands also breed more often.

Two other changes cover InfernalMobs. Enchanted gear dropped by its mobs has been fixed, and enchantability level ranges were added for its three drop tiers. Players in a world without these mods gain nothing from those parts. Behavior is set in the config file, and the author gives a more detailed loot-tier explanation on the GitHub page.

Luckified is a Forge mod for 1.12.2 only, released under the MIT License as open source. It requires FermiumBooter. Several other mods are optional companions that add their own parts when installed, and the mod was first created for RLCraft and also works with other modpacks.