Quick Answer
The most reliable long-term source of Mending is a librarian villager trade. Use an unlocked villager and a lectern, reroll the first enchanted book trade until Mending appears, then buy it once to lock the trade.
Prep Checklist
| Item or Condition | Purpose |
|---|---|
| Villager without a locked job | Can become a librarian |
| Lectern | Assigns the librarian profession |
| Emeralds and books | Pays for enchanted books |
| Secure room | Prevents zombies, raids, and wandering |
| Bed and light | Keeps the village area stable |
Version settings can matter. If your world uses villager trade rebalance experiments, check the current biome and profession rules before building a permanent hall.
Rolling the Trade
| Step | Action | Key Point |
|---|---|---|
| 1 | Put the villager in a safe room | Do not let it wander or die |
| 2 | Place the lectern | Confirm librarian trades appear |
| 3 | Break and replace the lectern if needed | Only works before you trade |
| 4 | Buy Mending once when it appears | This locks the trade |
| 5 | Build emerald income | Paper, crops, or iron routes all work |
Do not buy a different trade while rerolling. Once you trade, that villager’s profession and offers are locked.
Safe Trading Room
| Risk | Fix |
|---|---|
| Zombies reach the villager | Use fences, trapdoors, or sealed access |
| Villager escapes | Trade through a one-block window |
| Creeper damage | Light the area and avoid outdoor trading |
| Villager links to wrong station | Keep lecterns close and remove extra job blocks |