The Wandering Trader: Worth It or Not

Seven of the nine offers a wandering trader shows you are things he is selling, and five of those are the sort of thing you could grow in your own garden. Two come from a much shorter list that holds blue ice, packed ice and a stack of logs from a tree you may never have stood under. The last two are the part most guides never mention: since 1.21.5 he also buys, so he is no longer a pure emerald sink. And the two llamas standing behind him are often worth more than anything he is selling.

He is not a villager, and that changes everything

The wandering trader borrows the villager trade screen and almost nothing else.

• No profession, no workstation, no restocking. Every offer has a small number of uses, and when those run out that offer is dead for good.
• He buys, a little. Two of his nine slots are buy offers, drawn from a list of six: hay bale, water bottle, four baked potatoes, milk bucket, water bucket and fermented spider eye. Each buy offer has two uses. It is not a living, but it is not nothing either.
• Prices are fixed. Hero of the Village does nothing, curing a zombie villager does nothing, and there is no demand system nudging numbers around. Waiting gains you nothing.
• Killing him is free. He has no gossip and no village reputation. Iron golems do not care, and no villager will put prices up over it.
• He is on a clock. He despawns after 48000 ticks — 40 minutes — of sitting inside your render and simulation distance, then vanishes wherever he stands. Trapping him in a hole or a boat does not reset it, and neither does a name tag.

He also drinks a potion of Invisibility at night, which is why you sometimes find two llamas and two floating leads with apparently nothing between them. At first light he drinks milk and reappears.

His nine offers are rolled once, the moment he spawns: five drawn from the long ordinary list, two from a much shorter special list, and two from the buy list. They never change after that. If both special slots come up podzol, that trader is a podzol trader forever.

How often one turns up

The trader has its own spawner bolted onto the world, separate from ordinary mob spawning.

1. 1.Every 20 minutes of world ticking, the game rolls to spawn a trader.
2. 2.The first roll has a 25% chance. If it fails, the chance goes up by 25 points for the next roll.
3. 3.It climbs to a maximum of 75% and stays there until a trader actually appears, at which point it resets to 25%.
4. 4.Passing that roll is not the end of it. A second, independent 1-in-10 check has to pass as well, so the real odds per cycle are 2.5%, then 5%, then 7.5%.

That counter lives in the world's data, so logging out does not reset it, and it only ticks while the world is running. That fourth step is the one everybody forgets: the gap between traders is measured in hours of play, not in the twenty minutes the cycle length suggests, and once you are sitting at the top of the range a long dry spell does not make the next one certain — it just keeps the odds pinned at their best.

Two gamerules gate it: he stops appearing if mob spawning is switched off, and there is a dedicated switch just for him — /gamerule doTraderSpawning false, renamed to /gamerule spawn_wandering_traders false in 1.21.11. Both need cheats enabled or operator permissions. He spawns in the Overworld only, and only near a player.

Why he keeps appearing at your front door

The spawn position is chosen like this:

1. 1.The game picks a random player.
2. 2.It looks for a village meeting point — that is, a bell — within 48 blocks of that player.
3. 3.If it finds one, the bell becomes the anchor. If not, the player becomes the anchor.
4. 4.It then makes ten attempts at random positions within 48 blocks of the anchor. Each attempt tests the top surface block of that column, which needs to be valid ground with two blocks of clear space above it.

So a bell is a magnet. A decorative bell in your courtyard, or the one hanging in your trading hall, quietly guarantees that most traders in your world materialise on your doorstep rather than out in the wilderness. And light level is irrelevant here — base lighting and mob-proofing governs hostile spawns, not this one.

What he actually sells

The five ordinary offers are mostly a garden centre. At a single emerald: ferns, small flowers, seeds, sugar cane, pumpkins, vines, mushrooms, dyes three at a time, five lily pads, eight sand or four red sand. At two: sea pickles and glowstone. At three: kelp, cactus, coral blocks and fish buckets. At four: slime balls. At five: saplings and nautilus shells. Most of it is something you could farm yourself in an afternoon.

The two special offers are the ones worth reading. Packed ice for one emerald a trade with six trades in it, blue ice at six, eight logs of a single wood type for one emerald with four trades in it, three podzol for three emeralds, four gunpowder for one, a potion of Invisibility for five, and an enchanted iron pickaxe for somewhere between six and twenty.

The two buy offers are small change, but they are change in your favour. A hay bale, a water bottle or four baked potatoes each fetch one emerald, a milk bucket or a water bucket two, a fermented spider eye three, two uses apiece. Nine wheat baled into a single emerald is a better rate than a farmer villager gives you for loose wheat, which makes him a genuinely useful first buyer before you have a trading hall.

The trades genuinely worth taking

Blue ice, and packed ice behind it. Crafting one blue ice takes 9 packed ice, and each of those takes 9 ice — 81 blocks of ice, every one of them Silk Touch mined out of a frozen ocean or an ice spike field. Six emeralds instead is the best deal the trader offers by a distance, and packed ice at one emerald a trade is the same bargain one step down. Blue ice is also the fastest boat surface in the game, and neither blue nor packed ice melts near light sources or in the Nether, which is what makes ice boat highways possible. If you run nether tunnels between bases, buy every block he has.

Eight logs of a wood you do not own. One emerald for eight, four trades deep, is the cheapest way in the game to get a wood type you have never travelled for. It is a build material, not a supply — logs do not turn back into saplings — so treat it as a shortcut for a palette rather than a farm.

Saplings from biomes you do not have. Five emeralds, and one sapling is an entire species: plant it, grow it, and the leaves drop more saplings than you will ever plant. That turns five emeralds into an unlimited supply of a wood you would otherwise have to travel for, which matters if you are setting up a tree farm a long way from the right biome. One critical exception: dark oak only grows from a 2x2 of four saplings, so a single dark oak sapling is a paperweight until you own four of them.

Fish buckets. A bucket of tropical fish is the only food axolotls accept, for luring and for breeding, so a trader can hand you an axolotl programme without a trip to a warm ocean, and it stocks an aquarium instantly. A bucket of pufferfish is the brewing ingredient for Water Breathing, so three emeralds beats an hour of fishing before an ocean monument raid.

Coral blocks, if you are impatient. Three emeralds a block in the ordinary list is a fair price if you would rather not swim a warm ocean, though one Silk Touch trip still brings back more coral than a season of traders. Either way, remember coral needs water beside it or it turns grey and dead.

What to skip

• Anything farmable. Sugar cane, cactus, kelp, pumpkins, seeds, flowers and mushrooms all multiply themselves for free once you own one of them.
• Glowstone and slime balls. A single Nether trip returns stacks of glowstone, and slime balls come free from a swamp at night or a slime chunk — four emeralds each is an insult.
• Emerald opportunity cost. Every emerald spent here is an emerald not spent on a librarian, where the books that actually change your game live — see the villager trading guide. Measured against that, a lily pad is a very expensive lily pad.

The llamas are the real payout

Two trader llamas spawn leashed to him and follow him around. They spit at anything that attacks him, including you, and when his timer runs out they disappear with him.

Take both leads. Since 1.21.6 you can snip a leash simply by using shears on it, and the lead drops as an item at the llama — no violence required. Killing the trader drops both leads too, and may hand you a milk bucket or a potion of Invisibility on top. Leads cost five string for two to craft, so two free leads is a real reward for thirty seconds of work. If you do kill him, the llamas will spit at you for it — the damage is trivial, so either tank it or shoot him from a few blocks away.

Once the leash is gone, a trader llama behaves like any other llama, and there are three ways to stop it despawning:

• Tame it. Mount it repeatedly until hearts appear. Feeding wheat or hay bales raises its temper first and makes taming quicker. A tamed llama is yours permanently.
• Tie it to a fence post. A llama attached to a fence is off the clock.
• Do not just hold the lead. Walking it home on a lead is the least reliable of the three — get it tied up or tamed before you wander off.

A tamed llama takes a chest, and its capacity depends on the strength value rolled when it spawned: three inventory slots per point, up to a maximum of fifteen, though most llamas roll at the low end. That makes a small caravan a decent mobile chest for overland trips, and they spit at hostile mobs on the way. The taming and breeding guide covers mounting and temper in full.

How to stop them spawning next to your base

• Turn the spawner off. /gamerule doTraderSpawning false — /gamerule spawn_wandering_traders false from 1.21.11 onward — takes effect immediately, applies to the whole world, and is reversible at any time. It needs cheats or operator permissions, and nothing else comes close for reliability.
• Move your bells. Any bell within 48 blocks of you anchors the search. Take decorative bells out of your main build, or push them far enough away that he lands somewhere you do not mind.
• Deny standing room nearby. Each attempt only ever tests the top surface block of its column, so what matters is your roof and the open ground around you. Bottom slabs, water and open air are not valid ground. Lighting is not a defence — this spawn never checks light.
• Accept the radius. The search covers 48 blocks around the anchor, so sealing a large base completely is not practical. The realistic goal is keeping him off your farmland, not off your land.
• On a server, he can anchor on anyone. A random player is picked each cycle, so a trader appearing at your neighbour's bell is a trader not appearing at yours.

If you do nothing at all, he leaves on his own after about 40 minutes of loaded time, and the llamas leave with him.

The common mistakes

• Lighting up the base to stop him. Light level, bed count and mob caps are all irrelevant to this spawner. Only the gamerule, the bell placement and the available surface matter.
• Assuming he never pays you. That was true before 1.21.5 and is repeated everywhere. Two of his nine slots buy items now, and the hay bale rate is genuinely good early on.
• Killing him to stop the next one. The 20-minute cycle keeps rolling regardless. Killing him gets you the leads and whatever he happens to drop.
• Buying a single dark oak sapling. Four, in a 2x2, or nothing.

The verdict

Worth stopping for, not worth saving emeralds for. Read the two special slots first, buy them if they are ice or an unfamiliar log, sell him a hay bale on your way past, ignore the ferns, and then decide whether two leads and two pack llamas are worth a reputation hit that, uniquely in this game, does not exist.