What Changed: No More Infinite Rerolls
Starting with 1.22.2, librarian enchanted book trades are distributed by biome — each top-tier enchantment is tied to a specific biome. The old 'endlessly reroll one trading hall for any book' strategy is officially retired, replaced by 'biome hunting + local trading'. Pricing stays the same (paper-for-emeralds logic unchanged); only the book pool distribution changes.
Biome-Enchantment Cheat Sheet
Core mappings from snapshot testing (official release may tweak slightly). Mending remains the most coveted — swamp villagers are the only source, and swamps are hard to traverse with scarce villagers, so plan early.
| Biome | Available Books | Difficulty |
|---|---|---|
| Swamp | Mending | ★★★ Scarce villagers, rough terrain |
| Jungle | Efficiency, Fortune | ★★ Deep jungle trek |
| Plains | Protection, Sharpness | ★ Most common villages |
| Desert | Power, Flame | ★★ Heavy night spawns |
| Taiga | Silk Touch | ★★ Fairly easy to find |
| Snowy | Unbreaking, Frost Walker | ★★ Watch for freezing |
Trading Hall Rework Tips
1) Keep your existing hall but group librarians by biome: the main overworld hall keeps plains/taiga pools; build small 1-2 booth outposts per other biome. 2) Stockpile priority: Mending > Fortune/Silk Touch > Protection — use the old system for a final stockpile before the official release. 3) Name-tag high-value villagers to avoid accidental culls.